Train with structure, not guesswork
Follow proven splits, know your exact next session, and stay locked into a plan that builds momentum.
StrengthBox
Built for lifters, not for scrollingTRAIN
TRAIN
STRONGER
StrengthBox keeps your sessions sharp: clear program flow, fast set logging, and progress context you can use immediately in your next workout.
Session Snapshot
54:20
Duration
22
Sets
10,480
Volume
Coach note: keep bench intensity, reduce accessory fatigue tomorrow, and push sleep tonight to stay ahead for your next heavy set.
Focused tools for serious consistency
StrengthBox is designed for training intent: less tapping, less friction, and better decisions between sessions.
Log sets fast between rest periods
Minimal input flow for sets, reps, and weight so you can keep training without fighting the app.
See PRs and progression instantly
Automatic PR detection and clear progression history show exactly where strength is moving.
Use your training history intelligently
Volume, duration, and muscle load insights help you decide when to push and when to recover.
What users keep coming back for
- + Track active workouts with timer + rest flow
- + Follow built-in or custom programs
- + Save workouts as reusable templates
- + Get AI coaching summaries after sessions