Open—Shape vs Scaler 3
| Open—Shape | Scaler 3 | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web, iOS | Windows, macOS, iOS |
| Free plan | Yes | No |
| Progression generator | Yes | Yes |
| Voicing explorer | Yes | Yes |
| Supported instruments | guitar | guitar |
| Mobile apps | ios | ios |
| Chord audio playback | Yes | Yes |
| Reverse chord lookup | — | Yes |
Both are listed in Best Chord Finder Software. On Samsung Mobile US Press, Open—Shape scores higher on our published basis.