ChordU vs Open—Shape
| ChordU | Open—Shape | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $4.17/mo | Free |
| Open source | No | No |
| Platforms | Android, iOS, Web | iOS, Web |
| Free plan | Yes | Yes |
| Progression generator | Yes | Yes |
| Voicing explorer | Yes | Yes |
| Supported instruments | guitar, piano, ukulele, mandolin | guitar |
| Chord chart export | Yes | — |
| Mobile apps | ios_and_android | ios |
| Chord audio playback | Yes | Yes |
Both are listed in Best Chord Finder Software. On The Geeks Club, ChordU scores higher on our published basis.