Stamped.io is a well-regarded Shopify review app — but it starts at $23/month. ProofBoost gives you the same automated emails, photo reviews, and star ratings at $0/month.
Stamped costs $276/year for the basics. ProofBoost is $0.
Best Value
ProofBoost
$0
per month · forever free
Photo reviews
Automated email requests
Star ratings on collection pages
Review widget on product pages
Verified buyer badges
CSV import from Stamped
No credit card required
Stamped.io
$23
per month starting price (Basic plan)
Product reviews
Photo reviews
Automated emails
Video reviews require $59+/mo
Google Shopping requires $59+/mo
No permanent free plan
Why ProofBoost
Core reviews, done right — at zero cost.
💰
Save $276+ per year
Stamped's Basic plan is $23/month — $276/year. ProofBoost gives you the same review collection, display, and management features at exactly $0. The savings stack up fast.
🔄
Easy migration from Stamped
Export your reviews from Stamped as a CSV and import them into ProofBoost. Your existing reviews, photos, ratings, and dates transfer in minutes — nothing gets left behind.
⚡
5-minute setup
Install from the Shopify App Store, configure your post-purchase email timing, and you're live. No lengthy onboarding, no config calls, no waiting. Just reviews, working immediately.
FAQ
ProofBoost vs Stamped.io — common questions
For core review features — collection emails, photo reviews, star widget, verified badges — ProofBoost and Stamped are closely matched. Both automate review requests, both display photo reviews on product pages, both show star ratings on collection pages. The difference is price: Stamped starts at $23/month; ProofBoost is free.
Stamped offers video reviews, Google Shopping feed integration, NPS surveys, and a loyalty/rewards product on higher plans. These are features for stores with more advanced needs. If your goal is collecting and displaying product reviews, ProofBoost covers everything at zero cost.
Yes. Export your reviews from Stamped as a CSV file, then import that file into ProofBoost. Your review text, star ratings, reviewer names, dates, and photos will all transfer. The migration typically takes under 5 minutes.
ProofBoost is permanently free — not a trial, not a freemium plan. There's no paid tier to upgrade to, no credit card required, and no expiry date. The app is listed on the Shopify App Store as a free app.
Make the switch
Stop paying $23/month for reviews. ProofBoost does it free.
Get all the core review features Stamped offers — at $0/month, forever.