New: personalized AI training plans. Plus minor improvements.

Polish and under-the-hood improvements for smoother runs.

You can now edit your AI workouts — keep chatting with the coach to fine-tune any session.

• Live Activity: follow your run from the Lock Screen and Dynamic Island. • Apple Watch mirroring: start a workout on your Watch and pause, skip, or end it right from your iPhone. • Refinements and polish across the app.

Minor improvements and refinements.

Minor improvements and refinements.

Refined user experience for a smoother flow. Fixed minor bugs and improved performance.

Improved data handling and app reliability. Refined user experience for a smoother flow. Fixed minor bugs and improved performance. Enhanced interface details for better clarity. General stability and usability improvements.

Added workout browsing on Apple Watch with filters by duration and goal. Added workout counts to help you quickly find the right session. Updated the app icon.

Now you can chat with Coach Pete and get a run built just for you. Show him a workout image, describe what you want, or simply tell him how you’re feeling. He’ll turn it into a structured run tailored to your goals, fitness level, and available time.

Now in Español :) Stability and performance improvements for a smoother run.

Performance improvements and bug fixes for a smoother running experience

We burned the old app to the ground and rebuilt it from the ashes. New look, new vibe, same suffering on your intervals. Oh, and your workouts now sync between your iPhone and Apple Watch via CloudKit — because apparently running isn't painful enough without also managing two devices. We might have fixed some bugs too, who knows?

We burned the old app to the ground and rebuilt it from the ashes. New look, new vibe, same suffering on your intervals. Oh, and your workouts now sync between your iPhone and Apple Watch via CloudKit — because apparently running isn't painful enough without also managing two devices.

Bugs and stability fixes

Big updates. We’ve just made your runs smoother, smarter, and more enjoyable than ever. New Audio Cues You can now follow your running intervals effortlessly with new in-app audio guidance. Clear voice cues tell you when to start, when to recover, and when to finish strong. No more checking your screen mid-run. It feels like having a personal coach pacing each step with you. Apple Watch Companion App Your wrist just became the best place to start your runs. Launch, pause, and track your workouts directly from the Apple Watch, even when you leave your phone behind. The app automatically syncs everything when you reconnect. It’s lighter, simpler, and built for true freedom on the move. Smarter Workouts, More Fun We’ve re-engineered the workout flow to make each run feel smoother and more intuitive. Transitions between intervals are now perfectly timed, with pacing that adapts naturally to your effort. Whether you’re chasing speed, strength, or just getting out for a quick jog, the experience feels seamless. Fresh Daily Runs and Goals Discover new workout combinations every time you open the app. Tempo runs, intervals, fartleks, hills, and long runs now refresh automatically, giving you the right balance of challenge and recovery. You’ll never get bored repeating the same 5K again. Simplified Interface The app’s interface has been refined to make it faster and easier to start a workout. Cleaner visuals, improved layout, and reduced distractions mean you can focus entirely on running. Adjusting effort levels or switching workouts takes just a few taps. Built for Every Runner No matter your level, the app adapts to you. Beginners can explore short, guided sessions under 20 minutes. Experienced runners can dive into longer endurance and strength runs that still keep things engaging. Every workout is based on effort rather than rigid pace targets, so it always feels achievable. Guided by Feel, Not Pressure Our new RPE-based structure (Rate of Perceived Effort) keeps the focus on how you feel instead of strict numbers. You’ll learn to run by instinct and awareness, improving your consistency and enjoyment over time. Better Performance and Stability Behind the scenes, we’ve rebuilt the workout timing engine for better precision. Audio cues are now more reliable, even when you’re playing music or using other apps. Expect smoother background performance and improved battery efficiency. Polish and Small Details You’ll notice subtle touches everywhere: better feedback during transitions, faster resume times, clearer session summaries, and more accurate tracking between phone and watch. This release is the biggest step forward we’ve made. It sets the foundation for smarter coaching, richer feedback, and deeper personalization in the future. We hope this update makes your next run easier to start and harder to stop. Thank you for running with us.

We have added bug fixes and other minor improvements in this version so you can keep enjoying your Fartlek Interval Runs Guided.