Strontr is a clean, powerful fitness tracker for strength training, cardio, workout plans, progress history, and adaptive training.
★Free to start · Strontr PRO from $5.99/moAndroid 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's core is free for good — strength and cardio logging, your own plans, stats, calendar history, body metrics, and the full exercise library. Strontr PRO unlocks the Evolve Plan and Cardio Evolve Plan, AI routine generation, and advanced analytics. Every account gets one Evolve Plan and one Cardio Evolve Plan, free to try.
Download the app and build your next workout.
Download on the App StoreYes — Strontr's core is free: strength and cardio logging, your own plans, stats, calendar history, body metrics, and the exercise library. Strontr PRO ($5.99/mo or $39.99/yr) adds the Evolve Plan, Cardio Evolve Plan, AI routine generation, and advanced analytics — and every account gets one Evolve Plan and one Cardio Evolve Plan, free to try.
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.
Eleven languages: English, Spanish, French, German, Portuguese, Egyptian, Mandarin Chinese, Cantonese, Tagalog, Russian, and Turkish — with Egyptian 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.