Last updated 08-11-2026
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RESCI
RESCI (Retention Science) runs AI-driven email and SMS automation for ecommerce brands that want lifecycle campaigns to optimize themselves. The platform syncs order and customer data into a built-in CDP, predicts churn risk and lifetime value, then personalizes subject lines, send times, product recommendations, and message frequency per shopper. You can use prebuilt lifecycle flows or a drag-and-drop editor while the AI layer tests and refines each send.
Klaviyo and similar ESPs give you segments and A/B tests you manage manually. RESCI pushes self-optimization further by learning from each customer's behavior and adjusting individual emails without constant marketer intervention, though manual overrides remain available. Client case studies on the site cite 60% higher email engagement and 45% higher purchase rates, with brands reaching more than 350 million end customers through the platform daily.
DTC ecommerce teams, agency partners, and retention marketers at mid-market retailers are the target users. ReSci is now part of the Constant Contact family of brands and offers demo scheduling rather than self-serve checkout on the public site.
AI engine optimizes subject lines, content, delivery time, frequency, and product recommendations per customer
Built-in customer data platform predicts lifetime value, churn likelihood, and next purchase product
Lifecycle automations cover welcome series, cart abandonment, win-back, and repeat purchase campaigns
Drag-and-drop workflow editor lets marketers build flows while AI optimizes as much or as little as chosen
SMS and email run together for multi-channel campaigns from one platform
Client results cited on site include 60% higher email engagement and 45% higher purchase rates
Per-customer AI optimization reduces manual A/B testing and send-time tuning for retention teams.
Built-in CDP enriches profiles with churn and lifetime value predictions without a separate data tool.
Combines email and SMS lifecycle campaigns in one platform for multi-channel ecommerce journeys.
No public pricing page; the /pricing URL returns a 404 and sales requires a demo conversation.
Heavy AI automation may feel opaque to teams that prefer full manual control over every send.
Focused on ecommerce retailers, so it is not aimed at non-commerce email use cases.
What is RESCI?
RESCI, also called Retention Science or ReSci, is an AI email and SMS marketing platform for ecommerce. It personalizes lifecycle campaigns and optimizes send timing, content, and product recommendations for each customer.
How does RESCI use AI?
RESCI uses AI to self-optimize individual emails by learning from customer behavior. It predicts churn, lifetime value, and next purchases, then tests subject lines, content, and send schedules without requiring manual A/B test setup.
Does RESCI support SMS marketing?
Yes, RESCI combines SMS and email marketing in one platform. The homepage lists SMS alongside email for list growth and multi-channel customer journeys.
What ecommerce platforms does RESCI integrate with?
RESCI integrates with leading ecommerce platforms and syncs order and activity data into its customer data platform. The site does not publish a full integration list on the homepage.
Is RESCI part of Constant Contact?
Yes, RESCI is part of the Constant Contact family of brands according to the About page. It serves startups through Fortune 500 ecommerce companies and agency partners.
How do I get RESCI pricing?
RESCI does not list public pricing on its website. The homepage invites businesses to schedule a free demo, and the support phone line is 877-358-5969.