Run Fartlek

Saffru

About this app

Take your running to the next level with Run Fartlek – the simplest and most effective interval trainer for runners of all levels.

Fartlek, the Swedish term for "speed play," is one of the best methods to improve your cardiovascular endurance and race speed. Our app automates this process, allowing you to focus entirely on your stride while we handle the timing.

🏃‍♂️ WHY CHOOSE RUN FARTLEK?
Whether you are training for a 5K, a marathon, or just want to burn more calories, interval training is key. Run Fartlek provides a seamless, distraction-free experience with a clean "dark mode" interface designed for maximum visibility while you move.

🛠️ KEY FEATURES:
Custom Interval Timer: Easily set your "Slow" and "Fast" phases to match your fitness goals.

Audio Coaching: Stay focused on the road. High-quality whistle alerts tell you exactly when to sprint and when to recover.

Workout Presets: Save your favorite training routines. Switch between "Base," "Pyramid," or "Hardcore" sessions with a single tap.

Training Calendar: Keep track of your consistency. Review your past workouts and see your progress over time.

Share your Success: Automatically generate beautiful, customized story images with your workout stats to inspire your friends on social media.

🎯 PERFECT FOR:
Beginners looking to start interval running.

Advanced athletes refining their sprint speed.

Anyone bored with steady-state cardio who wants a dynamic challenge.

Stop watching the clock. Start playing with speed.

Download Run Fartlek today and find your new rhythm!

What’s new

New features