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Reviews

What brands and agencies say about Upstack Data.

Every review from the Shopify App Store and Trustpilot, and what customers and partners post on X, word for word with a link to each original.

We tried every attribution software out there. Upstack is the only one that can seamlessly tie email, social, and search attribution signals together. For health and wellness companies, it's invaluable. And to boot, their team's service levels are exceptional.

The Wellness Company United States · About 1 year using the app On the Shopify App Store, Sep 13, 2026

Upstack has been a great partner. They get back to me when I'm panicked about ad performance and dig into the pixel setup. They help me diagnose, guide me on future implementations, and are, altogether, a very reliable partner for a service that absolutely cannot slip.

The dashboard is easy to use, but ultimately, the key thing I need is a reliable partner where I know my data is solid and they've been that for me.

Dave Rekuc US On Trustpilot, Aug 26, 2026

i use upstack. wouldn't do without it and I tested much of the competition

Johnny Hickey @johnhickey1970 On X, Jun 25, 2026

Every review, newest first. 84 reviews and posts, grouped by source. Long ones open in place, and each links to where it was posted.

Shopify App Store 36 Trustpilot 5 X 43

Shopify App Store 36 reviews

Have been using Upstack for over a year and a half now. Great support directly from the founder and the solution runs well no issues

Lahloya Maternity United States · Over 1 year using the app On the Shopify App Store, Oct 5, 2026

Simply the best pixel management, data attribution and tracking solution available on Shopify. Been working with Upstack for 3 years now and never a problem. 5 Stars.

Saint and Sofia United Kingdom · About 2 years using the app On the Shopify App Store, Sep 30, 2026

We tried every attribution software out there. Upstack is the only one that can seamlessly tie email, social, and search attribution signals together. For health and wellness companies, it's invaluable. And to boot, their team's service levels are exceptional.

The Wellness Company United States · About 1 year using the app On the Shopify App Store, Sep 13, 2026

They're a great CAPI integration on Meta and work extremely well with Klaviyo and Google as well.

Read the full review

Beyond just the tech, they've been a great partner. They get back to me when I'm panicked about ad performance and dig into the pixel setup. They help me diagnose, guide me on future implementations, and are, altogether, a very reliable partner for a service that absolutely cannot slip.

The dashboard is easy to use, but ultimately, the key thing I need is a reliable partner where I know my data is solid and they've been that for me.

Bambu Earth United States · About 1 year using the app On the Shopify App Store, Aug 26, 2026

I’ve been using Upstack for about two weeks and the experience has been extremely frustrating.

Read the full review

First of all, support is basically non-existent. I’ve contacted Michael multiple times regarding dozens of warnings showing up in Events Manager, and he simply does not respond. When he does reply (rarely), it’s clear he hasn’t read my messages carefully and ignores the screenshots I provide.

Second, the tracking quality is seriously flawed. For example, around 55% of my PageView events are sending the same IP address instead of unique IPs per user. This completely breaks data accuracy, attribution, and audience building — which defeats the whole purpose of using a tool like this.

On top of that, there are multiple warnings (invalid timestamps, data inconsistencies, etc.) that remain unresolved even after reporting them.

And finally, the pricing is absurd for what it delivers. It’s extremely expensive, and honestly, even if it were free, I wouldn’t use it in its current state.

Overall: poor product, poor support, and unreliable tracking. Not recommended.

*** Update for : Their public reply is false.****

I first reported the issue on March 17, and even by March 22 I still had not received any real response or proper technical assistance, despite repeatedly asking for help during that entire period. In practice, I was talking to myself because nobody was actually addressing the issue.

The claim that they were responsive or actively trying to resolve this is simply untrue. I have the full conversation history, and it clearly shows how unprofessional, dismissive, and ineffective their support actually was.

Instead of taking responsibility for the technical problems and lack of support, they chose to post a misleading public reply and portray the customer as the problem. That says everything about how this company operates.

If anything, their response only further confirms my original review and strengthens my belief that this app does not deserve to be listed on Shopify in its current state.

Upstack Data replied, Mar 25, 2026

We attempted to help this individual get onboarded through a zoom call, however, customer was extremely abusive to our customer support reps, so we made the choice to discontinue working with this individual.

We responded timely to all requests within 24hr of US working hours. Non-emergency requests which come in over the weekend are handled first thing Monday.

We will NEVER work with customers who threaten, verbally assault or berate our staff.

Nextshoes.ro Romania · 9 days using the app On the Shopify App Store, edited Mar 31, 2026

Not only have we noticed improved performance on Meta and Klaviyo but the support is second to none. Any issues we've had Michael has arranged a call immediately to diagnose the issue. Amazing product and service!

Tapered Menswear United Kingdom · 6 months using the app On the Shopify App Store, Jan 29, 2025

This app has been incredibly helpful in navigating Meta’s new health policy changes. It provided an effective solution for fixing custom event tracking, ensuring our campaigns remain compliant and still track. Highly recommend it for anyone facing similar challenges!

NeuroMD United States · 3 months using the app On the Shopify App Store, Jan 28, 2025

Great developer, they think with you and with the great expertise our webshop is completely scaling proof again

Achaté Netherlands · 12 days using the app On the Shopify App Store, Jan 28, 2025

This App is great and their team is very intelligent and helpful. Integration was simple and they also helped fix our attribution issues from Klaviyo and Facebook. Michael, specifically, from Upstackified has been an asset to our company.

Sunday Scaries United States · 5 months using the app On the Shopify App Store, Dec 17, 2024

1. New Customer Data in the FB dashboard is so helpful

2. They included a dashboard with tons of good info like LTV number and such

Read the full review

3. Prices are very reasonable and Michael personally sets everything up for you, he built me flows in Klaviyo that capture lots of missed leads and they are delivering amazing results, he's a terrific person and super honest.

Don't think twice, you will get back the value X1000.

Wholly Pup United States · 2 months using the app On the Shopify App Store, Dec 16, 2024

This App is great

- setup was very straightforward, all done on a shhort call with an expert based in the US

- ongoing it has improved our data quality scores

- one small issue which was fixed within an hour, very impressive!

Chāmpo United Kingdom · 3 months using the app On the Shopify App Store, Dec 12, 2024

Moved from a competitor to Upstackified and have a very clear picture that Upstackified is a faster setup, with a much more competent team, amazing customer service, and better performance, for a cheaper price- it's not even close. Just the incremental email revenue alone covered it's cost and added a 41x ROI, not including the better data for ads.

Giant Hoodies | Your New Favorite Oversized Hoodie United States · 5 months using the app On the Shopify App Store, edited Nov 23, 2024

Implementation = a breeze. The data = clean. Integrations...tons! Overall super helpful to get us up & running and if we have any issues they are super responsive. Getting the data we need to scale campaigns & even helping our Klaviyo email instance to be more efficient. Thank you!

Gravel United States · 2 months using the app On the Shopify App Store, Nov 18, 2024

After testing out and surveying a number of platforms in this space, we onboarded with UpStack based on a strong recommendation. It's been a few a months now and absolutely no regrets.

Read the full review

Michael has been a fantastic partner. It's rare that I run into someone in ecomm that has a truly deep technical knowledge of the attribution space given that it's quite the black box. He knows the space forwards and backwards. Very impressed. He's readily available to assist and I've picked his brain many times, quite often on topics hardly related to his platform and he's yet to tell me to get lost.

We've seen Event Quality Match scores in meta increase, adding reliable NC purchase, NC CPA and NC ROAS metrics in ad manager is massively helpful as we're very focused on optimizing for NC, Klaviyo abandon flows are picking up significantly more revenue outside of our standard abandon flows (this alone generates a very solid ROI on using UpStack).

Overall big thumbs up for building a great platform and strong recommendation to others. With Michael's personal onboarding walk through which made the onboarding super simple and eliminated the chance of misconfiguration, combined with the trial period, there's no reason not to onboard to the platform and give it a try.

Maelove Skincare United States · 3 months using the app On the Shopify App Store, Aug 23, 2024

3rd party CAPI is important to increasing data accuracy with our marketing platforms. I looked at several providers and chose upstackified because I felt the technology and customer service were aligned with my business. After implementation our match rates went up over 30%. They even helped us navigate a few other technical issues along the way with a very personal touch. I highly recommend!

Wildhorn Outfitters United States · 4 months using the app On the Shopify App Store, Aug 23, 2024

Excellent app. The onboarding from the founder Michael was great and he was happy to answer any questions I had. No false promises as well which is nice. Our match rate scores increased by around 20% from using the native Shopify integration. Highly recommended.

Powerlete United Kingdom · About 2 months using the app On the Shopify App Store, Aug 23, 2024

Seamless onboarding from UpStack team

Appeared to get positive results straight from the outset across meta

Michael & team have been responsive to queries on Slack

Looking forward to seeing the results on our second store

vybey UK & EU | Braincare Nutrition | Premium Meal Replacement Shake United Kingdom · 2 days using the app On the Shopify App Store, Aug 23, 2024

We found this CAPI to better than others that we tried. We did have some initial challenges installing due to customizations on our end - but Michael and team were excellent in working through those issues and we have been live for several months. We've had steady performance over that time and our scores in META are strong. I recommend.

Printfresh United States · 4 months using the app On the Shopify App Store, Aug 22, 2024

Support is next to none, extremely happy so far. Michael Alt has been an amazing partner to work with and is very honest. Just ask him any questions you have and if you are satisfied with the answers, DEFINITELY go for it!

Mika and Sammy's Gourmet Pet Treats United States · About 1 month using the app On the Shopify App Store, Aug 22, 2024

Upstack is a must-have tool for improving conversion rates and maximizing ROI. Highly recommended! Michael is an expert and wonderful to work with.

Read Upstack Data's reply

Upstack Data replied, Aug 23, 2024

Too kind. Thank you very much for the review.

Crazy Compression United States · 3 months using the app On the Shopify App Store, Aug 12, 2024

I've tested out a few apps to link up data. I found Upstackified the easiest and best data integration for facebook. I chose this over Omega pixel and elevar. I had a meeting with Michael and was impressed with the knowledge and willingness to help audit and ensure everything was setup correctly. I'm at the $250 a month level. Which is a fair price at the end spend level we are at.

Read Upstack Data's reply

Upstack Data replied, Aug 23, 2024

Fair price, honest service, unbeatable data. That is the trifecta we aim for. I'm glad you landed on us. Thank you

Aquarium Co-Op United States · 11 days using the app On the Shopify App Store, Aug 6, 2024

We looked at several competitors and talked to some customers of upstackified and their competitors. From our research, Upstackified was by far the clear winner in terms of data accuracy, customer service and pricing. After installation, we saw improvements in our data and performance. Michael, the founder, is fully available and is quick to respond to any issues or questions we have. This is a no-brainer and just about a requirement in today's privacy environment, especially for brands spending larger dollars on paid ads.

Read Upstack Data's reply

Upstack Data replied, Aug 23, 2024

Appreciate the feedback and kind words

Bro Glo United States · 2 months using the app On the Shopify App Store, Jun 5, 2024

The proof is in the two email flows, one with unstuck data and one without. Makes a big difference. Onboarding was easy and Michael personally walked us through everything. Way better than I expected, fantastic solution.

Read Upstack Data's reply

Upstack Data replied, Aug 23, 2024

Great to hear the email flows are working other. Many competitors will simply claim credit from the klaviyo flows and distribute to make their performance look better than it is. We audit ours extensively to ensure we're truly adding value!

Labucq United States · About 2 months using the app On the Shopify App Store, Jun 4, 2024

This is not going to be an impartial review.

Read the full review

Ion boarded with Usted February 1, 2024 I didn’t think too much would happen from using the app so I had no high expectations. I had previously used blood out black Crow AI and was currently using retention dot com. They are not all direct competitors but they do somewhere at the same same thing with server to server tracking.

Within a few weeks I was very happy with a new customer data in my Facebook Ads Manager it’s nice to see a column that says NC sales and see NCROAS and NCCCA in platform.

He begin to go really well on my Facebook ad account I was doing pretty well I was happy with it as a matter fact I posted about a bunch of times on Twitter. Many people that I know and follow began to complain the Facebook ads was broken I did not see anything like this.

I had a conversation with Michael the owner of up Stock and I shared with him that I was having no trouble he replied to me that none of his clients were having trouble.

I had some friends were having trouble with their stores so I recommended they try up sack one after another they began to see the same results as I did for months or Facebook accounts we’re doing well what our peers were seeing who were using other products.

My theory is that MICHEAL has a product that was doing something slightly different than his competitors and I benefited from this tremendously financially. I’m spending six figures a month well into six figures a month and when you can get an edge on your competitors for two or three months it’s a big deal.

As well by the time may have arrived I had recommended probably 12 or 15 people to upstate and they had a similar experience to me many whose accounts had been suffering would turn around 3 to 4 days after being added to upStack.

I think once may arrived it appears that my competitive advantage through Michael’s product had lessened but February to May is a long time and I was happy to take advantage of that.

The good news is Micheal is releasing new products and I will keep my eye on those because as one product has done a lot of good for our brand.

We are a fast growing 8 figure brand

Upstack Data replied, Aug 23, 2024

Thank you! Yes, our product is built around Identity Management at the core. This gives us a distinct advantage over competitors who simply act as CAPI event proxy or rely solely on Shopify cookies for matching.

perfectwhitetee United States · 5 months using the app On the Shopify App Store, May 28, 2024

Amazing app and truly helpful!

After installation, we saw improvements in our data.

Also, Michael was attentive to all of our technical problems.

I recommend getting it if you need a real understanding of your store data.

Read Upstack Data's reply

Upstack Data replied, Aug 23, 2024

Thank you for the review! Glad you're tracking is now tip-top.

SOURCE United States · About 2 months using the app On the Shopify App Store, May 21, 2024

Great alternative to elevar. Priced better and I think even more accurate. Plus Michael helped set everything up which was huge. Also, the NC ROAS inplatorm feature in Meta is awesome.

Read Upstack Data's reply

Upstack Data replied, Aug 23, 2024

nCPA and ncROAS accurate and in-platform is such a game changer for media buying, imho. Thank you for the review!

Purusha People United States · 24 days using the app On the Shopify App Store, Apr 13, 2024

I've been using this app to track conversions, and I must say, it's been incredibly helpful in providing accurate measurements. The customer service team has also been outstanding; they've been prompt and effective in addressing any issues or questions I've had. Overall, I'm impressed with the app's functionality and the level of support provided. Highly recommend it!

SmartPulse Store United States · About 8 hours using the app On the Shopify App Store, Apr 7, 2024

I can't say enough good things about this app. I searched high and low for an attribution solution that was affordable and not overly complicated and this is it.

Read the full review

Attribution can be so difficult and since implementing upstackified, ours has improved dramatically - esp. on the meta side of things. Without this level of attribution you are just wasting money on your ads.

Michael was super helpful and responsive with getting us set up and answering any questions we have had.

Perfect attribution may not be possible these days, but this seems darn close. Super happy with upstackified! A great value!

Upstack Data replied, Aug 23, 2024

We put a lot of effort into the tech. to bury the complexity of what actually happens behind the scenes. Suffice to say, not all tracking is created equally.

Happy you're happy. Always here to help. Thank you for the review.

Artificer Wood Works United States · About 1 month using the app On the Shopify App Store, Mar 13, 2024

Absolutely amazing. We tried several different (and expensive) solutions, but none of them worked, and several caused more problems than we started with.

UpStack took care of everything. They gave us UNBELIEVABLE service, and walked us through getting all channels set up.

Read the full review

Our event tracking is better now than it has ever been... and we are able to make much better marketing decisions because of it.

We cannot thank Michael and the crew at UpStack enough... this app is HIGHLY RECOMMENDED!

Upstack Data replied, Mar 5, 2024

I really appreciate the review. I'm glad we were able to troubleshoot your tracking issues and identify the issues and resolve them.

Awesome that you are feeling more confident on your in-platform numbers and can better triangulate "the truth" regarding spend. We have a ton on the roadmap this year, so can't wait to find more opportunities to help you!

Primal Muscle United States · 16 days using the app On the Shopify App Store, Feb 29, 2024

Wow, where do I even start with UpStack Conversion Pixel? After banging our heads against the wall with several high-end (read: high-cost) options that promised the moon and delivered headaches, we stumbled upon UpStack. Game changer? Understatement of the year.

Read the full review

Set up was a breeze – I'm talking minutes, not hours or days. We went from "how does this even work" to "wow, it's already working" faster than I thought possible. And the tracking issues we've been grappling with? Consider them history. iOS14, browser privacy woes, cookie deprecation – UpStack handled them like a champ.

But here's the real kicker: the support. I've dealt with my fair share of customer service, but UpStack's team, especially Michael, was next level. We're talking world-class support that actually felt personalized and genuinely helpful. They didn't just throw us a lifeline; they dove in and swam us back to shore, making sure every channel was set up perfectly and our event tracking was on point.

Thanks to UpStack, our marketing decisions are now powered by data we can trust. The results speak for themselves, and our ROAS and CPA have never looked better. If you're on the fence, consider this your sign to go for it. UpStack Conversion Pixel isn't just recommended; it's a must-have in your digital toolkit. Kudos to Michael and the crew – you guys rock!

Upstack Data replied, Mar 5, 2024

Wow - great feedback. I'm so glad our support was well received. Our #1 goal is customer success and satisfaction. We win when you win mindset here.

Thank you for the review, truly appreciate it.

NutriPetRx United States · 14 days using the app On the Shopify App Store, Feb 29, 2024

Being there aren't many reviews at this point, I would like to take a minute to give an extended review for anyone considering partnering with UpStack.

Read the full review

We have been using the software for 2 months now, and we also have extended experience with other options out there. This is the best experience and the steadiest results I have seen across any other software we have worked with.

My review comes with comparisons to Triple Whale, Cometly, Bily.ai and MaximX (formerly OptimizeX).

Firstly, just working off of objective, quantitative results, we have finally been able to get back on track while leveraging UpStack. The software has helped us reach out highest scale to date, and played an intricate role in creating our best net margins while simultaneously achieving highest revenues yet.

Additionally, we have confidence in the side server data being sent back to platforms not only because we are seeing data align with all our dashboards, but campaigns are optimizing better and better as time goes by. Clearly, our data is being successfully sent back to platforms so it can be utilized and our investment in paid advertisement is fully leveraged.

This has not been the case with other partners we used in the past.

Previous options were inconsistent, lengthy with launching, would take a while for data to reflect properly, if ever. With other partners, we frequently found ourselves going back and forth with customer service to work out bugs that never quite were worked out in the end.

We were good with OptimizeX for a while, but at a certain point the software just stopped working. From there, we hopped around to multiple options without being able to find reliable results. For the record, Cometly was the worst experience of all of them. We always received excuses as to why things weren't matching up, or just being told it was accurate, when we could tell by our other forms of data collection it clearly wasn't.

Upstack excelled in this realm also... We did have a small discrepancy at launch, but customer service was awesome. Hopped on a screenshare, was knowledgeable, quickly found solutions, and after a single session we were off to the races.

You can trust the data in native dashboards in all platforms, and we are able to leverage automated rules again in Facebook. Just great stuff all around. We're happy that we don't have to constantly worry about our tracking any longer.

Bottom line: Stop searching and hop on with UpStack. You won't be disappointed

Upstack Data replied, Feb 29, 2024

Awesome! I'm so glad you are seeing great results. Upward and Onward!

HEALiX Infrared United States · About 2 months using the app On the Shopify App Store, Feb 23, 2024

Amazing service - actually unbelievable. Michael is not only rapid to respond but we jumped on a call and he basically fixed my ecommerce integrations and coding issues! Im so happy to find this app and team!

Read Upstack Data's reply

Upstack Data replied, Feb 23, 2024

Thanks! I'm glad we were able to solve your issues and let you focus on selling.

Rook Perfumes London | Unique Unisex Fragrance United Kingdom · About 23 hours using the app On the Shopify App Store, Feb 20, 2024

We installed this App for our site 'Shape' about 3 months ago and the results have been amazing. The support has been fantastic but the results speak for themselves. Highly recommend you give it a go for your Shopify store if you have Meta & Google Ads.

Read Upstack Data's reply

Upstack Data replied, Oct 13, 2023

I'm so glad that we are able to help merchants like yourself see better results. I share these positive reviews with the team and it really helps to keep our focus on serving our customers and driving incremental results / revenue.

Cheers to scaling!

Shape Clothing Australia · 3 months using the app On the Shopify App Store, Oct 11, 2023

Absolutely the best customer service I received from any App author! We were struggling through conversations with both Meta and Shopify support and not getting anywhere with deduplicating our events in Events Manager. Not only did UpStackified help us massively with onboarding their solution, they also spotted some other bugs in our setup that we were able to correct - resulting in a massive win for us! Michael is wicked smart and a total delight.

Read Upstack Data's reply

Upstack Data replied, Aug 30, 2023

We appreciate the great feedback. Super glad we could help get your tracking issues resolved and don't hesitate to reach out if you need anything.

Willow Australia · 1 day using the app On the Shopify App Store, Aug 29, 2023

Before using UpStackified, I relied on Shopify's built-in CAPI integration. It was working for a while, but then all of a sudden, my Facebook ads manager went crazy. Everything started to be attributed as a "purchase" even if it wasn't a purchase and each "purchase was randomly attributed to an ad that was never clicked on. It was such a big deal, I even complained on Twitter about it.

Read the full review

After installing UpStackified, it was all fixed within 24 hours. My attribution was a PERFECT 1-to-1 match between my real Shopify sales and my Facebook ads manager. On top of that, my "event match quality" on events ad manager went from "okay" to "great". Best of all, the attribution actually sped up. It now only takes a few hours rather than a few days to know whether a specific ad made a sale or not.

Without UpStackified, I literally would not know what to do. With it, I can now scale more efficiently than before because I know my attribution is spot on.

Upstack Data replied, Aug 30, 2023

Glad your tracking is improved and you're able to scale your campaigns. Please reach out if you need any support or have additional questions.

Wicked Warlock United States · 4 days using the app On the Shopify App Store, Jul 20, 2023

Great app, with excellent customer support, and seamless integration only takes literally 2 minutes. By far the best app in terms of integration and customer support. I've tried hundreds of apps for conversions api, nothing comes close to upstackified.

Read Upstack Data's reply

Upstack Data replied, Jul 18, 2023

<3 Happy to help. You have my email if you need anything

Deen & Keenu Pakistan · 32 minutes using the app On the Shopify App Store, Jul 13, 2023

Trustpilot 5 reviews

Great tool great service

Michael and his team are knowledgeable, responsive, and very helpful. Reliable is definitely the word I'd use to describe the service and tool, and it only seems to be getting better.

Liz GB On Trustpilot, Oct 6, 2026

Our domain was miscategorized with H&W last year and since then we've been using Upstack as a solution. Great service and product, highly recommend

James J US On Trustpilot, Oct 5, 2026

Michael and the whole Upstack Data team are fantastic to work with. They started running our tracking stack about 3 years ago (when they were starting out) and have been a joy to work with. Accurate data, quick responses and a proactive - friendly approach. 5 stars.

Malcolm GB On Trustpilot, Sep 30, 2026

We tried every attribution software out there. Upstack is the only one that can crack the ecommerce code, especially for companies that fall under Health & Wellness in Meta. The team is hyper-responsive on Slack. Couldn't ask for more.

Peter Gillooly US On Trustpilot, Sep 13, 2026

Great service and the tool does what it's supposed to

Upstack has been a great partner. They get back to me when I'm panicked about ad performance and dig into the pixel setup. They help me diagnose, guide me on future implementations, and are, altogether, a very reliable partner for a service that absolutely cannot slip.

Read the full review

The dashboard is easy to use, but ultimately, the key thing I need is a reliable partner where I know my data is solid and they've been that for me.

Dave Rekuc US On Trustpilot, Aug 26, 2026

X 43 posts

9 figure brand email tool stack (save this): Klaviyo, Alia, Upstack Data, Loop, Zaymo, Postscript, LoyaltyLion

Leon Wolf @leondwolf On X, Jul 15, 2026

i use upstack. wouldn't do without it and I tested much of the competition

Johnny Hickey @johnhickey1970 On X, Jun 25, 2026

Little exercise.

Maybe it’s nothing.

go open your events manager..post your results below.

In my opinion, conversion API is crucial.

When performance goes down i look at this.

If you’re struggling on Meta I would definitely look into your EMQ scores.

I use Mike’s company Upstack.

we are always in the 9s

Read the full review

I know it might not seem like a big difference but I’ve seen people with EMQ scores in the eights struggle… then switch to Upstack and dominate.

i have personally used 4 separate CAPI products imo his is the best.

Johnny Hickey @johnhickey1970 On X, Jun 9, 2026

Upstack data and @michael_upstack - his team and tech are stellar

Colin McGuire @colinvmcguire On X, May 15, 2026

Just want to give a shout out to @michael_upstack at @upstackdata. Sent a slack message asking for an emergency meeting to fix a very costly mistake due to something I screwed up, was on a zoom call 20 mins later resolving it. This is how you gain long term customers.

Dana Peters @DanaPeters0321 On X, Apr 25, 2026

The best email marketing tools (coming from a $21M email marketer). For tracking and attribution: @upstackdata

Umair Sheikh @_umair_sheikh On X, Apr 3, 2026

The best email marketing tools (coming from a $20M email marketer): For sending emails: @Klaviyo. For sending SMS: @PostscriptIO. For pop-ups: @alialearn. For tracking and attribution: @upstackdata. For email inspiration: Milled & reallygoodemails. For checking spam: Glockapps

Umair Sheikh @_umair_sheikh On X, Jan 17, 2026

Upstack turning anonymous traffic into signal is a cheat code

Chase Dimond @ecomchasedimond On X, Dec 11, 2025

Another first class onboarding from @michael_upstack. Service providers / SAAS should study this guy

Jacob @jforjacob On X, Nov 12, 2025

Another example where doesn't matter what you do, if your pixel data is muddy or something is broken with your CAPI, nothing else matter. Shoutout to @michael_upstack for helping so many brands.

Ash @ashvinmelwani On X, Nov 7, 2025

couple of months back Mike from @michael_upstack asked me if I wanted to be part of a beta program. i’ll let him explain it to you basically it’s a tool that makes me more money. I’m always down for beta if it means more cash in the til.

Johnny Hickey @johnhickey1970 On X, Oct 30, 2025

Speaking of which I have a new hack. michael_upstack gave me this one. Driving about 50-60k a month to rn. I have a few tbh but only 2/5 I can share.

Johnny Hickey @johnhickey1970 On X, Sep 3, 2025

Good to have saas friends. I have been dealing with low conversion rate, high CPA, unable to scale. Last month was a record breaker but this month has sucked. Text michael_upstack (he’s a dev) he went through the whole site found a few things we made some changes.

Johnny Hickey @johnhickey1970 On X, Aug 14, 2025

Upstack partner

That’s why i love tools like upstackdata that fixes this with identity resolution: Connects fragmented sessions / 30% boost in abandonment revenue / 50% more emails actually sent / Zero increase in ESP costs. michael_upstack is doing great stuff over there.

Jimmy Kim @jimmykim On X, Jul 4, 2025

Upstack partner

This isn’t third party data, this is your data, highly optimized. The tool will literally pay for itself in just a couple days. That’s why I’m proud to be a partner of Upstack and I encourage all retention marketers to check out Upstack Data here: upstackdata.com

Jimmy Kim @jimmykim On X, Jul 4, 2025

I have about five messages in my DMS from people I recommended Mike’s data product too they’re all similar to this. This one was a pretty quick turnaround most of them it’s like a couple of weeks or a month. I’ve never recommended it to anybody and heard from them months later that they thought it didn’t work. I I know at least 20 brands that use it

Johnny Hickey @johnhickey1970 On X, May 3, 2025

First month with Upstack and got this report back from my email guy. Pretty wild

Welcome Flow up 61%

Browse Abandonment Flow up 216%

Post-Purchase Upsell Flow up 1.3k%

Abandoned Checkout Flow up 62%

Jacob @jforjacob On X, Apr 12, 2025

Upstack is generating an extra $3K/month in revenue we were leaving on the table.

According to our email guy (@JamesBoostBerry ), It's finding 20,000 additional add-to-cart events monthly that would have disappeared without follow-up.

Read the full review

We initially thought it was a tracking error, but confirmed these are real potential customers who wouldn't have received abandon cart emails through normal flows.

If you're not optimizing your cart abandonment strategy, you're literally watching money walk away...

Thank you @michael_upstack

James Lee @jameshyujinlee On X, Apr 12, 2025

Long gone. We were having technical issues and they weren’t willing to look into it. Been working with michael_upstack instead.

James Lee @jameshyujinlee On X, Apr 6, 2025

UpStack pays for itself. Literally. Our Abandoned Cart and Browse Abandonment Flow literally doubled. And I feel like I am using UpStack for free. Upstack is a Capi solution at the end.

James Lee @jameshyujinlee On X, Feb 26, 2025

Top 3 Most Effortless Revenue Generating Shopify Apps… #2 - @upstackdata: Literally 2X’d our revenue from Klaviyo Abandoned Cart flows

James Lee @jameshyujinlee On X, Feb 26, 2025

Mike is great, we use his first party app to track everything. Reliable. @johnhickey1970 introduced him to us last year. Highly recommend to take a look.

Alex @balanced_alex On X, Feb 26, 2025

We did see an uplift when we onboarded with Upstack, yes. Our EMQ scores improved by circa 20%.

Matt Elms @MattElms On X, Feb 23, 2025

I knew a few brands that saw suddenly bad meta performance February/March 2024

This is totally anecdotal but When I compared emq scores with they had slightly lower numbers then mine.

Read the full review

A few of those folks went on @michael_upstack and the ones I kept in touch with saw better performance it’s been close to a year, I’ll ask Mike if he can name one.

Johnny Hickey @johnhickey1970 On X, Feb 23, 2025

For anyone reading use Upstack it works great and @michael_upstack provides amazing support in getting it setup and working. Can't complain

Tyler Peck @TylerPk On X, Feb 21, 2025

Mikes @michael_upstack attribution dash has been very very useful lately. Its helped me run continue to run some ads i would have shut off otherwise.

Johnny Hickey @johnhickey1970 On X, Feb 17, 2025

Bily broke down during BFCM one time. It broke again for one of our accounts and they were not able to fix the issue. Talked to Michael the next day and migrated over to Upstack. Everything went back to normal.

James Lee @jameshyujinlee On X, Jan 5, 2025

One of the biggest unlocks this year has been trusting @michael_upstack and using @upstackified. There are Elevar, Black Crow, Little data, Triple whale and a bunch of others CAPI providers but so far we've added it to close to 20 accounts.

Trayan Hristov @THristov_ On X, Nov 20, 2024

Two biggest things that turned around my ad account was iterating creative until I found the TOF ripper again and using Upstackified's NC Count column for confidence to see it targeting new customers pretty much exclusively.

Matt Horner @interwebsmatt On X, Nov 18, 2024

Do I trust the up stack NCROAS in platform meta # to scale? Yes.

Johnny Hickey @johnhickey1970 On X, Nov 17, 2024

I also wanted to share that UpStackified has greatly helped my client. Previously, they only saw 50% of their sales on Meta, but now it's around 80%. I believe it significantly improved their results.

Marcin @mar_szychowski On X, Sep 5, 2024

And this honestly is why we have upstack on 80% of our accounts (we just couldn’t convince the others yet lol)

Trayan Hristov @THristov_ On X, Aug 22, 2024

Favorite software tool rn - upstackified.com. Very quickly improved Lark Meta event matching. Easy setup for non-technical people like me, @michael_upstack helped clean up all of the poor setup I had previously done with other tools, and pricing is solid.

Mitch Sanders @mitch_scg On X, Aug 19, 2024

The NCCPA and NC ROAS metrics are what you want to be looking at to grow your brand. Focus on growing with new customers, instead of just selling cheaply to existing customers to grow. @michael_upstack is the one who can provide you with this metric

William Kast @williamkast_ On X, Jul 26, 2024

We implemented Upstackified @michael_upstack and I was horrified at the number of new customers it said we were

Reed Sutton @reedsutton On X, Jul 3, 2024

@michael_upstack is the most knowledgeable one I’ve met

Trayan Hristov @THristov_ On X, May 24, 2024

@michael_upstack put another brand that was having trouble with meta ads on his capi this week. This was what I got back. Not the first brand that has said this. I think mikes product is helping us.

Johnny Hickey @johnhickey1970 On X, Apr 22, 2024

@michael_upstack and @_phoenixha both have tools that do it. Priceless to me.

Johnny Hickey @johnhickey1970 On X, Mar 26, 2024

New customer AOV by ad in Facebook. If this @michael_upstack guy keeps adding metrics ima need a bigger screen.

Johnny Hickey @johnhickey1970 On X, Mar 14, 2024

I would bet all the pixel tools that are being run can do it. But @michael_upstack is the one that told me he could do it. Took about 10 minutes to set up.

Johnny Hickey @johnhickey1970 On X, Feb 6, 2024

G2 and Capterra list Upstack Data, and neither has a review yet. G2 · Capterra

Every review as one Markdown file

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