ChordProgressions.org vs HarmonyBuilder
| ChordProgressions.org | HarmonyBuilder | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | Yes |
| Paid from | Free | $14/mo |
| Open source | No | No |
| Platforms | Web | Linux, macOS, Windows |
| Free plan | Yes | No |
| Reverse chord lookup | Yes | No |
| Progression generator | Yes | Yes |
| Voicing explorer | Yes | Yes |
| Supported instruments | guitar, piano | — |
| Chord chart export | Yes | Yes |
| Chord audio playback | Yes | Yes |
| Mobile apps | — | none |
Both are listed in Best Chord Finder Software. On Everything Xiaomi, ChordProgressions.org scores higher on our published basis.