Comparison
RetentionKit vs Stamped.io
Stamped bundles reviews and loyalty — but pricing climbs fast and the UI shows its age.
Feature
RetentionKit
Stamped.io
Loyalty program
Product reviews
Referral program
Limited
Photo & video reviews
Site / brand reviews
AI review insights
Unified moderation inbox
Product Q&A
Paid add-on
Loyalty tiers (Bronze/Silver/Gold)
Higher tier only
Birthday bonuses
1-click import from competitors
Manual / CSV
Google rich-snippet feed
Paid add-on
All three programs in one bill
Free plan
Up to 500 orders/mo
Limited
Starting paid price
$29/mo
loyalty starts at $59/mo, climbs to $249/mo quickly.
Built for Shopify-native UI
Varies
Where Stamped.io falls short
- Loyalty tier jumps from $59 to $249 fast
- Slower widget load times
- Support response times vary
Why merchants pick RetentionKit
- Loyalty + reviews + referrals in one app
- Free plan with unlimited reviews
- Single bill, predictable pricing
- Installs in under 2 minutes