Strontr is a clean, powerful fitness tracker for strength training, cardio, workout plans, progress history, and adaptive training.
★Completely free while Strontr growsAndroid version coming soon.
Strontr does strength, cardio, plans, stats, and long-term progress properly — and makes them feel like one focused product.
Log sets, reps, weight, RPE, notes, and workout history without getting buried in clutter.
Track runs and cardio sessions with a clean, focused experience.
An adaptive weekly training plan designed to help your workouts progress over time.
Build and follow your own workout plans, then convert them into an Evolve Plan when you're ready.
See training history, streaks, calendar activity, progress, and body metrics in one place.
Find exercises, review details, and keep your training organized.
Evolve Plan helps structure your training week and adapt your progression so you can stay focused on the next workout instead of constantly rebuilding your routine.
Most fitness apps are too cluttered, too generic, or too focused on one kind of training. Strontr combines lifting, cardio, planning, stats, and progress history — and stays out of your way.
Get the app →Strontr is the first training app I haven't deleted within a week. It loads instantly, the timer works, and the progress actually keeps me showing up.
Strontr is currently completely free while it grows and improves. You can track strength workouts, cardio, plans, stats, calendar history, and progress without paying. For a free app, Strontr should feel unusually polished, focused, and complete.
Download the app and build your next workout.
Download on the App StoreYes — Strontr is currently completely free while it grows and improves. Strength tracking, cardio, fixed plans, the Evolve Plan, stats, calendar history, body metrics, and the exercise library are all included, with no charge right now.
Your data lives on your iPhone using SwiftData. Sign in with Apple enables account-level features and sync across your devices.
Yes — and only the directions you allow. Read weight and body-fat from Health, write finished workouts and runs back. You stay in control of every permission.
Yes. A native watchOS app logs sets, controls rest timers, and tracks runs from your wrist. It pairs over the watch connectivity bridge with no cloud round-trip.
Ten languages: English, Spanish, French, German, Brazilian Portuguese, Egyptian Arabic, Mandarin Chinese, Cantonese, Tagalog, and Russian — with Egyptian Arabic fully laid out right-to-left.
One tap. Settings → Account → Delete Account wipes everything locally and marks your account for server-side deletion if you signed in with Apple. See our privacy policy for details.