iPhone · Android · Watch · Widgets

Train stronger.
Track everything.
Evolve faster.

Strontr is a clean, powerful fitness tracker.

Download on the App Store Get it on Google Play Explore features
Strength & cardio Watch app, both platforms Health sync, both platforms

Now on Android too.

Evolve Plan

Your plan should grow with you.

Evolve Plan adapts your progression.

01
Weekly structure
02
Adaptive progression
03
Less decision fatigue
04
Built for long-term improvement
Everything you need

Strength, cardio, and progress — in one place.

One focused product.

Strength Tracking

Log sets, reps, weight, RPE, notes, and workout history without getting buried in clutter.

Cardio Tracking

Track runs and cardio sessions with a clean, focused experience.

Adaptive

Evolve Plan

An adaptive weekly training plan designed to help your workouts progress over time.

Fixed Plans

Build and follow your own workout plans, then convert them into an Evolve Plan when you're ready.

Stats & Calendar

See training history, streaks, calendar activity, progress, and body metrics in one place.

Exercise Library

Find exercises, review details, and keep your training organized.

$0
Free to use
0
Trackers
2
Platforms
1-tap
Delete all data
Free

Extremely generous, forever.

Get the app
Pricing

Start free. Go PRO when you're ready.

PRO adds the coach that keeps you progressing.

Most popular
PRO
In-app

7-day free trial.

  • Everything in Free
  • Evolve adaptive progression
  • AI routine generator
  • Cardio Evolve Plan for your runs
  • Advanced analytics
Go PRO
Why Strontr

Built for people who actually train.

Made independently by an Egyptian founder building Strontr with care.

Matthew Schauki →

Start tracking your training with Strontr.

Download the app and build your next workout.

Download on the App Store Get it on Google Play
FAQ

Questions, answered.

Is Strontr really free?

Yes — the core is free, with no time limit: strength and cardio tracking, your own routines, full workout history, the calendar, and the complete exercise library. PRO adds the Evolve adaptive plan, Cardio Evolve, and advanced analytics — try it free for 7 days.

Where is my data stored?

Your data lives on your own phone first — on iPhone and on Android. Signing in with Apple or Google enables account-level features and sync across your devices.

Does it sync with Apple Health and Health Connect?

Yes — Apple Health on iPhone, Health Connect on Android, and only the directions you allow. Read weight and body fat in, write finished workouts and runs back with distance, calories and your route. You stay in control of every permission and can withdraw any of it at any time.

Is there a watch app?

Yes, on both — a native watchOS app for Apple Watch and a native Wear OS app for Android watches. Log sets, run rest timers, and see today's plan from your wrist. Today's plan is pushed to the watch in advance, so it keeps working when your phone is out of range, and anything you log syncs back the moment it reconnects. The watch app is free.

How do I delete my data?

One tap. Settings → Account → Delete Account wipes everything on your phone and permanently deletes your synced data from our servers, whether you signed in with Apple or Google. See our privacy policy for details.