One Bar a Day — Practice Log

Log your instrument practice, one bar a day.

One Bar a Day is a Korean-language practice log for any instrument. Pick an instrument, tap start, and the time is recorded.

- One-tap practice timer per instrument, with pause and resume. The timer keeps running even if you close the app. Add a short note when you finish.
- Practice streak: any day with at least one minute counts. Missed yesterday? Once a week you can protect your streak.
- Calendar coloured by your daily goal, with each day's sessions and notes.
- Weekly summary: total time, days practised, longest session, minutes per day, time per instrument and a comparison with last week.
- Metronome: 30-250 BPM, 2/3/4/6 beats with an accented first beat, and tap tempo.

Your records stay on this device. No account or sign-in. No ads on the practice and metronome screens; a banner appears on the calendar and weekly summary screens, and optional rewarded ads unlock streak protection and older weekly summaries. Large-text setting included.

Privacy policy: https://apps.cmore.dev/haru-sojeol/privacy
Contact: cmore.developers@gmail.com