Onion Browser vs Waterfox
| Onion Browser | Waterfox | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | Yes |
| Paid from | Free | $5/mo |
| Open source | Yes | Yes |
| Platforms | iOS | Android, extension, Linux, macOS, Windows |
| Free plan | Yes | Yes |
| Supported platforms | mobile | both |
| Open source | Yes | Yes |
| Browser engine | — | gecko |
| Built-in ad blocking | — | Yes |
| Tracking protection | — | advanced |
| Cross-device sync | — | Yes |
Both are listed in Best Web Browsers, Best Privacy Browsers. On Freedom251, Waterfox scores higher on our published basis.