Upstack vs Retention.com

Retention.com is an identity data company. For ecommerce brands it puts one pixel on your site, matches anonymous visitors against its own graph of opted-in US records and independent identity networks, and sends inbox-verified emails to your email platform for list growth and abandonment recovery. It also offers SMS recovery, hashed-email audiences for Meta and email reactivation, and sells identity by API, CDP sync or flat file to publishers, adtech companies and data companies.

Retention.com doesn’t publish a price. It describes a flat monthly fee for data access that doesn’t change with volume, billed month to month with no annual contract, and you can pause it in slow seasons. Its pricing page redirects to a 14-day free trial capped at 1,000 leads. To compare, ask for the fee at your traffic.

Per resolved match: one identified visitor is one match, even when it carries several emails or phone numbers. Starter is 8,000 matches for $200 a month, Growth 25,000 for $500 a month and Scale 80,000 for $1,200 a month, billed monthly on a yearly plan with a 60-day opt-out. Larger volumes are quoted. Audience needs a Signal plan, which is $149 a month for up to 1,000 orders, and has a 14-day free trial.

It depends on the quote, since Retention.com doesn’t publish its fee. Audience is $200 a month for 8,000 matches, $500 a month for 25,000 and $1,200 a month for 80,000, plus a Signal plan. A flat fee doesn’t grow with volume, so at high volume Retention.com may cost less per contact. At lower volume, set its quote against the package that covers your matches.

Reach and terms. Retention.com syncs with 12 email platforms, including Attentive, Mailchimp, HubSpot and Iterable, as well as Shopify, BigCommerce, WooCommerce, Magento, webhooks, Zapier, CDPs, APIs and flat files. It adds SMS recovery and email reactivation, bills month to month with a pause option, and can be bought on its own. Audience delivers to Klaviyo, Omnisend and Meta, runs on a yearly plan and needs a Signal plan.

Yes. Audience runs on the Upstack pixel and the identity Signal resolves, so it is sold as an add-on to a Signal plan. Signal is server-side tracking, the Conversions API and first-party identity resolution, none of which Retention.com’s pages list.

Retention.com pushes hashed-email audiences to Meta, refreshed continuously, for retargeting and as lookalike seeds. Audience sends each match to Meta through the Conversions API alongside your events, so upper-funnel events such as page views and add-to-carts reach an Event Match Quality of 8+.

Both identify anonymous visitors from consented US networks and add them to Klaviyo. Retention.com charges a flat monthly fee it doesn’t publish, month to month, and syncs with 12 email platforms. Tie, formerly Revenue Roll, publishes credit-based plans on 12-month contracts, with identification from $18K a year prepaid, and adds predictive scores and Primary-inbox placement. Retention.com offers a 14-day free trial; Tie a 7- or 30-day proof of concept.

Yes, for a trial. Exclude one tool’s new contacts from the other’s welcome flow so no shopper gets two, set one total send volume across both, and compare contacts, flow revenue and Meta match quality on the same weeks before you choose.