Interval
A daily practice journal with all the tools you need in one place.
Interval suggests a shape for the session before you start it: something to warm up on, something to work at, and something to just play.
Every line says why it is there, and the reason is always something about you — what you wrote in your notes last time, what you have been working on, how long it has been.
Start a session and the timer runs. Everything else is one tap away without leaving it.
A dial that waits for the string to settle instead of twitching around it. It taps you when the note lands, so you can watch the fretboard rather than the screen.
Standard, drop D, DADGAD, open G, open D, and half or full step down.
Interval listens, names the chords, works out what key they are in, and writes the number system underneath — with a chord chart for every shape it heard.
The numbers are the useful part: the same progression in any key reads the same way.
Scales drawn along the neck in any key. A shape for every chord the app knows. Drills that say what to do and why it works. Short theory written for people teaching themselves.
Every chord shape is checked against the notes it actually sounds, so a diagram cannot quietly be wrong.
A streak that does not shame you, a week at a glance, and a year that fills in as you play. Green is a day you hit your goal.
Paths move you forward a stage at a time, by playing rather than by the calendar. Miss a week and you are exactly where you left off.
No account. No sign-up. No analytics, no tracking, no ads. Interval makes no network requests at all — what you record and what you write stay on the device.
Back your journal up to a file whenever you like, and restore it on a new phone.