Kcalz: AI Calorie Counter
GRATUIT
Free
Health & Fitness
Free
Fartlek Interval Trainer
by Richard English
Description
Run faster and train smarter with the original Fartlek auto-detect interval training app. Built by runners for runners. For both Apple Watch and iPhone.
Train with classic intervals, HIIT, Tabata and Fartlek in one powerful running app.
More than just a simple timer. Switch to Fartlek mode and let FiT detect your speed, automatically converting your run into structured intervals.
No reaching for your device.
No pressing buttons.
Just automatic recording of your activity.
FiT displays your progress live, with color-coded feedback showing how hard you’re running and when you’re recovering. The beautiful Dual Progress Ring shows progress for the current interval and the overall workout, keeping you motivated throughout.
Analyze every interval with detailed pace, heart rate, cadence and distance metrics.
Share your runs with friends with full syncing to Strava and Apple Health.
Key features:
Auto-detection of spontaneous intervals in Fartlek mode
Live color-coded effort feedback
Powerful interval timer for structured workouts
Detailed interval metrics and analysis
Integrated with Strava and Apple Health
NEW! Advanced effort levels automatically detect sprint, hard, moderate and easy effort during your run.
Run free.
Train smart.
Let the app do the rest.
Happy fartlekking!
Subscription Terms
FiT offers an optional auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your Apple ID account settings.
Terms of Use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy:
https://www.iubenda.com/privacy-policy/39192677
Train with classic intervals, HIIT, Tabata and Fartlek in one powerful running app.
More than just a simple timer. Switch to Fartlek mode and let FiT detect your speed, automatically converting your run into structured intervals.
No reaching for your device.
No pressing buttons.
Just automatic recording of your activity.
FiT displays your progress live, with color-coded feedback showing how hard you’re running and when you’re recovering. The beautiful Dual Progress Ring shows progress for the current interval and the overall workout, keeping you motivated throughout.
Analyze every interval with detailed pace, heart rate, cadence and distance metrics.
Share your runs with friends with full syncing to Strava and Apple Health.
Key features:
Auto-detection of spontaneous intervals in Fartlek mode
Live color-coded effort feedback
Powerful interval timer for structured workouts
Detailed interval metrics and analysis
Integrated with Strava and Apple Health
NEW! Advanced effort levels automatically detect sprint, hard, moderate and easy effort during your run.
Run free.
Train smart.
Let the app do the rest.
Happy fartlekking!
Subscription Terms
FiT offers an optional auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your Apple ID account settings.
Terms of Use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy:
https://www.iubenda.com/privacy-policy/39192677
What's new (v2.4)
Version 2.4 introduces advanced pace bands for interval workouts.
Structured interval sessions can now use pace bands such as easy, moderate, hard and sprint, giving you a clearer way to plan, follow and review your efforts.
Whether you are building a gentle progression run, a hard interval session or a mixed-effort workout, intervals can now reflect the way you actually train — not just simple work and rest blocks.
This update also includes workout list layout refinements, improved alerts, minor fixes and performance improvements.
Structured interval sessions can now use pace bands such as easy, moderate, hard and sprint, giving you a clearer way to plan, follow and review your efforts.
Whether you are building a gentle progression run, a hard interval session or a mixed-effort workout, intervals can now reflect the way you actually train — not just simple work and rest blocks.
This update also includes workout list layout refinements, improved alerts, minor fixes and performance improvements.
