AI Endurance on Apple Watch

Watchletic is the ideal app for those seeking to optimize their running and triathlon performance, using AI Endurance-generated workouts on their Apple Watch.

Experience seamless workout setup on your Apple Watch like never before.

With Watchletic, effortlessly sync your AI Endurance-generated workout intervals directly to your Watch.

All workouts are conveniently saved to Apple Health, and you can export your data in all major formats, including to Strava, which AI Endurance can then access for further analysis.

For any feedback or suggestions, please don't hesitate to reach out to me at

Download Watchletic on the App Store

It's free!

Screenshot of both an iPhone and an Apple Watch showing creation of structured workouts

Custom structured workouts

Combine intervals, warmups, cooldowns, recovery, etc. in whatever way suits your training the best.

Screenshot of an Apple Watch showing active workout view

Easy to read UI

Carefully tested fonts, sizes and colors for easiest readability at a glance. No longer looking twice to see what your current pace is.

Screenshot of the AI Endurance website and an Apple Watch a workout from the calendar

AI Endurance integration

Effortlessly synchronize structured workouts with AI Endurance, enabling you to concentrate on your triathlon training without the stress of remembering every intricate detail.

Download Watchletic on the App Store

It's free!


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  • Multi-platform integration: Sync your workouts with TrainingPeaks, Final Surge, AI Endurance, Runcoach, Nolio,, Trenara and TrainAsONE for comprehensive triathlon training plans.
  • Train for running, cycling, and swimming with discipline-specific workouts.
  • GPS and distance tracking for accurate cross-country skiing workouts.
  • Create complex custom structured workouts with intervals, warmups, cooldowns, recovery, and more.
  • Import and export structured workouts to and from your favorite training platforms.
  • Import .FIT files generated from various services.
  • Custom workout templates for personalized training plans.
  • Audio/tactile cues when out of a target range.
  • Pacing splits with positive or negative splits, and optional reference route for hill effort configuration.
  • Apple Health integration: Store workouts and sync with other apps effortlessly.
  • Connect to Strava for direct export, eliminating the need for third-party apps!
  • Export to GPX, TCX, and FIT workout files.
  • User-friendly UI with preset common settings for hassle-free setup.
  • Always-On display for quick workout insights on your watch.


While Watchletic offers a wide range of features at no cost, you can enhance your training experience by joining Watchletic Club for only $1.99/month. To see the differences between the free and premium offerings, take a look at the table below.

Running workouts✔️✔️
Cycling workouts✔️✔️
Swimming workouts✔️✔️
Walking workouts✔️✔️
Cross-country skiing workouts✔️✔️
Create custom structured workouts✔️✔️
Create custom workout templates✔️✔️
Create custom workout plans✔️✔️
Store workouts on Apple Health✔️✔️
Announcements for new intervals, current pace, etc.✔️✔️
Show heart rate zones when working out for all workout types✔️✔️
Setup custom layouts for showing live workout data✔️✔️
Setup pacing splits similar to Garmin's PacePro✔️✔️
Always-On display✔️✔️
Use Apple Watch Ultra action button to skip intervals or pause workout✔️✔️
Optionally auto-pause runs and cycling✔️✔️
View post-workout stats✔️✔️
Animate your workouts✔️✔️
Export to Strava✔️✔️
Export to GPX, TCX, FIT files✔️✔️
Export to TrainingPeaks, Final Surge, TrainAsONE✔️✔️
Import from TrainingPeaks, Final Surge, TrainAsONE, AI Endurance, Nolio, Runcoach, Trenara,✔️
Import FIT files✔️