Ostinato
Ostinato's first release focuses on a guitar course and on-device, self-reported progress. You can choose to start single-note observation and grant microphone permission; audio is processed only in temporary device memory, never recorded or uploaded. Observation does not produce a correctness or mastery score; the course can be completed without the microphone. Camera coaching and paid sales are disabled in the first release.
Dated development preview
Inside the app
Development build captured on 16 October 2026. These images do not establish the current store version, sales readiness or result accuracy.
In-app view
Ostinato home in the normal iOS development build. Written lessons and the posture-reference catalogue are visible; live camera practice and subscriptions are off.
Source build
development-ios-c4370ed3aaf0f0040310788e2020da3522ad017a
In-app view
Ostinato written guitar lesson in the iOS development build. This is not a teaching or microphone-accuracy measurement.
Source build
development-ios-9e4253433bdf428717abc92cd92fed082e2be48f
In-app view
Ostinato course view in the iOS development build; progress is self-reported.
Source build
development-ios-9e4253433bdf428717abc92cd92fed082e2be48f01 — First release
Guitar course.
The course offers reading, practice and self-reported progress steps. It does not require camera permission and can be completed without the microphone.
Choose optional single-note observation.
You start observation and grant operating-system microphone permission. The approximate note display does not score chords, timing, correctness or mastery; it does not complete a lesson.
02 — Course scope
Audio is processed only in temporary device memory; raw audio files are not recorded or uploaded. Leaving the screen, changing account or moving to the background stops the microphone; returning does not restart it. Camera coaching and paid sales are disabled in the first release.
Coming soon to your phone.
Ostinato is currently in development. Write to us if you'd like to hear when it launches.
Ostinato does not replace a music teacher; the course and optional note observation do not certify technique correctness or mastery.