File Viewer Plus vs Ultra File Opener
| File Viewer Plus | Ultra File Opener | |
|---|---|---|
| Free plan | No | No |
| Free trial | Yes | Yes |
| Paid from | €1.83/mo | — |
| Open source | No | No |
| Platforms | Android, Windows | Windows |
| Free plan | No | Yes |
| Primary access | desktop | desktop |
| Archive preview | Yes | Yes |
| Office file preview | Yes | Yes |
| Code file preview | Yes | Yes |
| In-file search | Yes | — |
Both are listed in Best File Viewer Software. On Samsung Mobile US Press, File Viewer Plus scores higher on our published basis.