Opera vs SquareBrowser
| Opera | SquareBrowser | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | $0.33/mo | Free |
| Open source | No | Yes |
| Platforms | Android, extension, iOS, Linux, macOS, Web, Windows | Android |
| Free plan | Yes | Yes |
| Supported platforms | both | mobile |
| Browser engine | chromium | — |
| Built-in ad blocking | Yes | Yes |
| Extension support | both | — |
| Cross-device sync | Yes | No |
| Open source | — | Yes |
Both are listed in Best Web Browsers, Best Mobile Browser Software. On Freedom251, Opera scores higher on our published basis.