Stamped.io vs ProveSource
Side-by-side from the Top 11 ranking of The 11 Best Social Proof & Review Software Tools. Last verified June 15, 2026.
The short answer
Stamped.io ranks higher on Top 11 (#3 vs #9) for Ecommerce and SaaS companies collecting and displaying reviews and testimonials. Near-enterprise features (reviews, loyalty, Q&A) at a mid-market price.
At a glance
| Stamped.io | ProveSource | |
|---|---|---|
| Top 11 rank | #3 / The 11 Best Social Proof & Review Software Tools | #9 / The 11 Best Social Proof & Review Software Tools |
| Score (out of 9.4) | 8.8 | 7.6 |
| Best for | Best value feature set | Simple FOMO notifications |
| Pricing | $$ ($23 to $249/mo) | $ ($0 to $45/mo) |
| HQ | Singapore | Tel Aviv, Israel |
| Founded | 2016 | 2017 |
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
ProveSource
A simple and effective tool for displaying recent sales notifications.
provesrc.comSee 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.