Gravl: AI Personal Trainer

What Gravl is and who it suits

Gravl is an AI personal trainer for strength training. It writes the workout plan, then works from the sets and reps you log to decide what you do next time.

It suits someone who already lifts and would rather have the next weight and rep target chosen for them than picked by feel each session. A companion Wear OS app covers logging from the watch.

Progressive overload and next-session weights

Gravl estimates your one-rep max from your logged history and uses it to prescribe your next session. Reps increase set by set within a range. Once the range is full, the weight goes up in steps that match the plates or machine stack you actually have.

After a set you rate it Easy or Hard, and the next prescription adjusts to that rating.

Logging workouts on a Wear OS watch

The Wear OS app runs on its own, so you can log sets and reps, use rest timers, and finish a full session from the watch without the phone. Wear OS Tiles show recovery, workouts, streak and weekly progress at a glance.

Workout data syncs with Health Connect, Garmin and Strava.

Strength Score and lift progress over time

The Strength Score compares your lifts with standards for your body weight and sex. It is tracked over time for each muscle group, so you can see which areas are moving and which are not.

Session planning around your equipment and recovery

Gravl takes into account the equipment you own, which muscles are still recovering, what you trained in your last session, and lifts you have been neglecting. Those inputs shape the plan rather than applying one generic template.

The library holds 300+ trainer-led exercise videos, which you can download for offline use.