Smile.io vs Stamped.io
Side-by-side from the Top 11 rankings of The 11 Best Customer Loyalty & Rewards Software and The 11 Best Social Proof & Review Software Tools. Last verified June 18, 2026.
The short answer
Smile.io ranks higher on Top 11 (#2 vs #3) for Retailers and ecommerce brands running loyalty programs / Ecommerce and SaaS companies collecting and displaying reviews and testimonials. Best pure-play loyalty tool for ease of use and core features.
At a glance
| Smile.io | Stamped.io | |
|---|---|---|
| Top 11 rank | #2 / The 11 Best Customer Loyalty & Rewards Software | #3 / The 11 Best Social Proof & Review Software Tools |
| Score (out of 9.4) | 9.1 | 8.8 |
| Best for | Dedicated loyalty for SMBs | Best value feature set |
| Pricing | $$ ($49 to $999/mo) | $$ ($23 to $249/mo) |
| HQ | Kitchener, Canada | Singapore |
| Founded | 2012 | 2016 |
Smile.io
Best pure-play loyalty tool for ease of use and core features.
smile.ioSee full entry in The 11 Best Customer Loyalty & Rewards Software
Stamped.io
Near-enterprise features (reviews, loyalty, Q&A) at a mid-market price.
stamped.ioSee full entry in The 11 Best Social Proof & Review Software Tools
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.