Smile.io is the loyalty app most Shopify stores should start with — the easiest program to launch, with a genuinely free tier. This guide covers how it works on Shopify and which integration matters most.
Built-for-Shopify, live in days
Smile.io is Built-for-Shopify with native checkout-extension support, and its defining quality is speed to launch: points, VIP tiers, and referrals can be live in days, not weeks, with no developer. You install from the Shopify App Store, configure earning and redemption rules, and the rewards widget goes on your storefront.
The integration that matters: Klaviyo
The highest-value connection is Klaviyo. Smile.io’s Klaviyo integration lets loyalty events (points earned, tier reached, reward available) trigger retention emails, which is how a loyalty program turns into actual repeat-purchase revenue rather than a points balance nobody acts on. If you run Klaviyo, wire this first.
The honest caveat
The features that make loyalty powerful are gated to higher plans: VIP tiers and API access live on the $199/mo Growth plan and the $999/mo Plus plan, and customization on the lower tiers is limited. Advanced reporting and segmentation are also weaker than LoyaltyLion’s. Pricing: Free (under 200 monthly orders), Standard $79/mo (1,000 orders), Growth $199/mo. See the Smile.io pricing breakdown.
Who this is for
Smile.io fits small-to-mid Shopify stores that want a branded loyalty program working fast, with a real free entry under 200 monthly orders. It is our top pick in the best loyalty app roundup; if you need deeper customization and analytics, LoyaltyLion vs Smile.io covers the mid-market alternative.
Smile.io
"The Leading Loyalty Platform for Shopify Brands" — points, VIP, and referrals.
Free · from $79/mo