Side by side
Proofy vs usecheck
Both stand on email verification apis. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
Proofy combines one-off checks, bulk verification, API workflows, and form integrations. Its technical signals and stated accuracy target are useful, while uncertain server responses can still require review.
Visit Proofy Free plan APIWeb
Visit usecheck The facts
| Proofy | usecheck | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Web |
| Lowest paid plan | Trial: $5, paid once | Starter: $19 a month |
| Plans published | 1 | 5 |
| Maker | Not published | Not published |
| Website | proofy.io | usecheck.sh |
| On email verification apis | #22 of 31 | #26 of 31 |
Proofy: what it does well
- Bulk files support up to 1 million addresses
- REST API supports real-time and batch checks
- Disposable detection included
- Credits roll over
- Free single-address checker
What to know first
- Paid service
- No free trial
- Catch-all results may be Risky or Unknown
- Bulk files are removed after 60 days
usecheck: what it does well
Alternatives to Proofy Alternatives to usecheck The whole list