Onyx

A focused workout tracker. Log your sets, reuse your routines and watch your progress.

Log workouts

Track sets, reps and weight, or time for timed exercises, with a live workout timer and your previous numbers next to every set.

700+ exercises

Pick from a catalog grouped by muscle and equipment, with a picture of the muscles each one works, or add your own.

Routines

Save a workout as a routine and start from it next time, so you don't have to set everything up again.

Progress

See your history, personal records and body weight over time, in kg or lb.

Your data

Onyx has no ads and no tracking. Your workouts are stored on your phone and backed up to your account, so they're safe when you switch phones. You can delete your account and all of its data in the app at any time. Read the privacy policy for the details.

Support

Questions or problems? E-mail optroot.store@outlook.com.