⚑ iOS & watchOS · Free to start

Interval Timer for
Real Strength Training

ironTracker guides you set by set through your workout – with precise strength levels, Apple Watch motion counting and seamless HealthKit integration.

6 Sets Β· 30s Work Β· 50s Rest

WORK

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Give it all  |  Level 7

Everything you need for structured training

No distractions, no overhead – just the timer, your sets and your progress.

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Strength Levels per Set

You define the exact strength level for each set – ironTracker always shows the right intensity during your workout. Precise, per-set, reproducible.

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Apple Watch – Motion Counting

The Apple Watch counts your reps and movements right on your wrist. Fully standalone – no iPhone required.

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HealthKit Integration

Workouts are automatically saved in the Apple Health app – with heart rate, calories and workout duration.

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History & Statistics

Track your progress over weeks and months. See at a glance how your strength levels develop over time.

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Custom Programs

Create unlimited custom workouts with individual sets, durations and strength level configurations.

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Privacy by Design

No server, no tracking, no ads. All data stays on your device – encrypted and secure.

Three proven strength training protocols

Ready to use immediately – or as a template for your own programs.

6 Sets Β· 30s / 50s
Total duration: 7:10
6 Sets 30s Work 50s Rest
Set 1 Warm-up βˆ’2
Set 2 Push harder βˆ’1
3–5 Push your limits Max
Set 6 Give it everything βˆ’1
3 Sets Β· 80s / 100s
Total duration: 7:20
3 Sets 80s Work 100s Rest
Set 1 2 levels below max βˆ’2
Set 2 It has to burn Max
Set 3 It has to hurt βˆ’1
3 Sets Β· 30s / 60s
Total duration: 3:30
3 Sets 30s Work 60s Rest
Set 1 Give it all Max
Set 2 Give even more Max
Set 3 Push your limits βˆ’1

The perfect addition to any training

ironTracker works with any equipment and program – you bring the exercises, we bring the timer.

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Free Weights

Dumbbells, barbells, kettlebells – ironTracker keeps the time while you keep the tension.

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Fitness Machines

Compatible with equipment from leading manufacturers like Technogym, Milon or Eisenhorn – strength levels adapt precisely to any weight setting.

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Structured Programs

Ideal for time-based circuit concepts – such as the Eisenhorn Mike 5 program or any other protocol with fixed set and rest durations.

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Home Workouts

Bodyweight, resistance bands, home equipment – structured training without a gym.

ironTracker is compatible with all structured strength training concepts – including time-based circuit programs on machines from Technogym, Milon or Eisenhorn (e.g. the Eisenhorn Mike 5 program), as well as classic strength training with free weights or bodyweight exercises. Strength levels adapt flexibly to any weight scale.

Fully standalone on your wrist

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Motion Counting

The Apple Watch automatically detects and counts your reps – so you can focus entirely on your form.

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Standalone Mode

All features work without an iPhone nearby.

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Real-time Heart Rate

Live HR measurement directly on the Watch, synced with HealthKit.

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Haptic Feedback

Vibration on every phase change – no need to look at the display.

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Seamless Sync

Programs and settings automatically sync between iPhone and Watch.

REST
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Your data belongs to YOU.

ironTracker is designed so that no data ever leaves your device – unless you explicitly want it to.

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No Tracking

No analytics, no crash reports, no advertising framework.

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Local Storage

All data stays on your iPhone – encrypted in the app container.

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iCloud opt-in

Sync between devices is optional and disabled by default.

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No Server

There is no backend server. The app works completely offline.

Read full privacy policy β†’

Support independent development

ironTracker is free and fully usable. Subscriptions are a voluntary contribution to ongoing independent development.

Great Supporter
5.99 €
per year Β· auto-renewing
  • All app features included
  • Supports active development
  • iCloud sync

Not into subscriptions? No problem – the app is fully usable without one.
Subscriptions can be cancelled anytime via Settings β†’ Apple ID β†’ Subscriptions.

Ready to start?

Free to download, start immediately. No account, no registration.

Download on the App Store