Strontr is the training app for people who actually lift, run, and care. Just your numbers, your plan, and a streak worth keeping.
Android version coming soon.
Most fitness apps pick a lane. Strontr does strength, running, and body tracking properly — and makes them feel like one product.
Build routines, log heavy compound sets, rest with a smart timer, and track PRs across every lift. Apple Watch logs sets straight from your wrist.
GPS routes, splits, pace, elevation. Live Activities on the lock screen and Dynamic Island.
Weight, body fat, and full-body measurements with clean trend lines you can actually read.
A single, honest streak. Skip a day and you lose it. Designed to make you show up — not gamed.
Home Screen widgets, Lock Screen complications, and a native Apple Watch app that does the work.
Your data lives on your device. No ads. No third-party analytics. No selling anything to anyone. A single tap to delete everything.
No "premium streak boosters." No coach-bot pestering you at 7am. No banner ads between your sets. Just the cleanest, fastest way to log work and watch yourself get stronger.
Read the manifesto →Strontr is the first lifting app I haven't deleted within a week. It loads instantly, the timer works, and the streak actually makes me show up.
Strontr is free. Every feature — workouts, runs, routines, body metrics, streaks, the Evolve adaptive plan, advanced analytics, Apple Watch, widgets — included.
Get Strontr — it's freeYes — completely free. Every feature is included: workouts, runs, routines, body metrics, streaks, the Evolve adaptive plan, advanced analytics, Apple Watch, and widgets.
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.