RetentionLab, the retention intelligence platform built for Shopify and Klaviyo brands, is now available in the Shopify App Store. Mid-market direct-to-consumer brands can install RetentionLab directly from their Shopify admin, connect their existing email service provider, and start running predictive retention audiences inside a single afternoon.
What RetentionLab does
RetentionLab sits above Klaviyo and decides which customers to re-engage, when, and on which channel. The platform scores every customer in a Shopify store for churn risk and expected lifetime value, enriches the customer record with demographic and behavioral context derived from first-party and publicly available data, and writes the resulting ranked audience back to Klaviyo segments on a recurring schedule. Brands running Postscript for SMS or a personalization tool for on-site messaging get the same orchestration across those channels, with cross-channel suppression that follows the customer rather than the sending tool.
The product is built for the mid-market Shopify segment specifically. Brands with $1M to $50M in annual revenue that have outgrown manual segment-building inside Klaviyo but are not yet large enough to warrant an enterprise CDP plus a retention analyst on staff. RetentionLab fills the gap.
Why this matters for Shopify merchants
The retention gap most Shopify brands face is not that they lack tooling. They have Klaviyo for email, possibly Postscript for SMS, often a loyalty program, and increasingly an on-site personalization layer. The gap is the decision layer above those tools. Klaviyo can send the message; it cannot decide who needs which message based on enriched profile data and churn risk that updates weekly. Without that decision layer, retention programs default to whatever segments the marketer can build manually, which is rarely the best segment for the customer.
A typical install loop on a mid-market Shopify brand: connect Shopify via OAuth, connect Klaviyo via API, complete customer enrichment within hours, and push the first ranked retention audience into a Klaviyo segment by the end of the same day. The customer keeps approving and sending campaigns inside Klaviyo. RetentionLab handles the audience, the timing, and the cross-channel suppression in the background.
The math underneath: a mid-market brand running RetentionLab for a full quarter typically sees repeat purchase rate move 18 to 32 percent, win-back recovery rates 2 to 4 times higher than calendar-triggered flows, and margin recovery of 4 to 8 percent on the top customer decile through discount suppression. Numbers vary by vertical and starting condition. The pattern is consistent: the platform pays for itself inside a single quarter on most Shopify brands above 5,000 active customers.
From the founder
“Most mid-market Shopify brands have Klaviyo set up well enough to send. What they do not have is the layer that decides who to send to, when, and why,” said Zachary Babcock, founder of RetentionLab. “Listing in the Shopify App Store removes the last installation friction. You click install, connect your ESP, and your first ranked retention audience is in Klaviyo the same day. That speed to first value is what we built the platform around.”
What ships in the launch
The Shopify App Store install includes:
- Per-customer churn risk scoring against your actual order history, ESP engagement, and subscription signals. Weekly retrain by default.
- Customer profile enrichment with demographic, household, and behavioral context derived from first-party order data and public reference datasets.
- Automatic audience routing into Klaviyo, Omnisend, Mailchimp, and Postscript with cross-channel suppression that follows the customer record across providers.
- Recovered-revenue attribution back to the originating audience, so retention campaigns earn defensible numbers in the next quarterly review.
- Five contact-band pricing tiers from $29.99 to $1,299 per month, with a 14-day free trial on the Starter tier and a 7-day free trial on the Launch tier.
How to install
The full listing is at apps.shopify.com/retentionlab. Shopify merchants can install directly from the listing, complete onboarding in roughly an hour, and have the first retention audience pushed into their Klaviyo account by end of day. The Shopify + Klaviyo retention intelligence product page covers the integration model in more detail, and the multichannel orchestration implementation guide walks through the seven-step rollout for brands running email plus SMS.
About RetentionLab
RetentionLab is the retention intelligence layer built for mid-market direct-to-consumer brands on Shopify and Klaviyo. The platform scores every customer for churn risk and expected lifetime value, enriches Shopify customer profiles with demographic and behavioral context, and orchestrates email, SMS, and on-site retention campaigns through the providers merchants already run. Founded by Zachary Babcock. Remote-first. More at retentionlab.ai.