Questions, bugs or ideas? Write to email. Please include your phone model, iOS version and what you were doing.
No. You bring your own files. The Music page has a few tracks to try.
No. Splitting songs, finding chords and timing lyrics all run on your phone. There is no account, no advertising and no tracking. See the privacy policy.
A few minutes per song. Keep the screen on until it finishes. The result is stored inside the app.
Only songs stored on your phone can be copied. Streaming-only songs are protected and can’t be imported.
Chord detection is a good guess. Use Edit Detected Chords to fix them, or type the chords you know the song uses and listen again. Setting “Remove chords shorter than” higher gives a simpler chart.
Settings ▸ Backup & Restore makes one file with everything in it.
In TestFlight, open IsoBox and choose Send Beta Feedback, or take a screenshot inside the app and choose Share Beta Feedback.