Kosshi Outliner vs Outspline
| Kosshi Outliner | Outspline | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | Yes | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | iOS, macOS | Linux |
| Free plan | No | Yes |
| App platforms | macOS, iOS (iPhone, iPad) | Linux |
| Export formats | Markdown, Rich Text, TextBundle, Plain Text, OPML | plain text |
| Offline access | Yes | — |
| Markdown support | Yes | — |
| Real-time collaboration | No | — |
| Backlinks | Yes | — |
| Navigation modes | collapse, zoom, search, filters, bookmarks, saved searches | tiling, tabbing, schedule views, search |
Both are listed in Best Outliner Software. On Samsung Mobile US Press, Kosshi Outliner scores higher on our published basis.