Updated March 31, 2026. This ranking combines Shopify App Store loyalty leaders with Detectify storefront signals wherever visible rewards widgets and account elements exist.

Bon Loyalty
Bon Loyalty earns the top spot here because it covers the core loyalty stack without feeling overloaded for merchants who mainly need points, rewards and referrals.

Smile.io
Smile.io stays near the top because it is often the default comparison point when merchants evaluate points programs and referral mechanics on Shopify.

Joy.io
Joy.io is worth serious attention because newer loyalty apps are winning merchants by making setup simpler without giving up the core rewards program mechanics.

Growave
Growave belongs on the shortlist because it bundles loyalty with other conversion layers, which can be useful when merchants prefer a broader merchant toolkit.

Yotpo Loyalty & Rewards
Yotpo Loyalty still matters for teams that evaluate retention tools as part of a broader ecosystem rather than a standalone rewards widget.
Official reference
Why loyalty apps are interesting
Loyalty programs often expose customer-facing widgets, account modules and reward interfaces, which makes them one of the more researchable retention categories.