Chalk: Gym Workout Log

Chalk is a gym notebook built for the minute between sets.

Log a set in one tap: the dial already sits on your weight, tap Log set, and the rest timer starts on its own. It keeps running on the lock screen and in the notification, with +15 s and skip right there, so your phone can stay in your pocket.

Built for real training
- Routines with A and B workouts on the days you train
- Supersets and tri-sets that rotate for you
- Start from your heaviest set, your last set, or the plan
- Fix any set during a rest without stopping the clock
- Progress for every exercise: chart, record, and every session
- Your full history, session by session

Your data stays yours
- Free, with no account, no ads, no analytics
- Everything is stored on your phone
- Back up to a file, or automatically to your own Google Drive
- Export everything to CSV at any time

In English, Czech, German, Spanish, French, and Portuguese (Brazil).
Light and dark mode, kg or lb.