Describe your run.
Run it on your wrist.
Type 8 x 400m, 1 min rest: EZ Run builds the workout with your paces and sends it to your Apple Watch.
Coming soon to the App Store iPhone · iOS 26Free, no account, no ads.
One sentence is enough
"3 x 10 min threshold", "45 min easy run", "200-400-600 pyramid": warm-up, reps, recoveries and cool-down are generated for you, on your iPhone with Apple Intelligence.
Your paces, not averages
Enter your maximal aerobic speed (MAS) or measure it with the built-in 6-minute test: every step gets its target pace, from MAS to easy.
Guided on Apple Watch
Schedule the workout: the Workout app guides you step by step, with pace alerts. Tweak it by hand or just ask for "more rest".
The whole workout, no spreadsheet
From your request to your watch in seconds.
Questions
What do I need?
An iPhone on iOS 26 and an Apple Watch to run the workouts. Generation uses Apple Intelligence (compatible device); otherwise Gemini with your own API key, or build workouts by hand.
Is my data sent anywhere?
No. EZ Run has no account and no server: your workouts stay on your devices and sync through iCloud. Details in the privacy policy.
Is it really free?
Yes, no ads and no subscription. An optional in-app tip supports development; it unlocks nothing.
I don't know my MAS.
The app includes a 6-minute test: run as far as you can, enter the distance, and your MAS is calculated.