Create and customize your own high-intensity interval training routines with a library of exercises. Use the built-in timer to complete workouts and share them with others. No equipment is required.





248+ iOS apps curated and reviewed
Finding the right custom workout builder apps can be overwhelming with so many options. We've analyzed 248+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | May 2026 | ||
| 2 | Free | 4.9★ (34) | No | Yes | Oct 2026 | ||
| 3 | Free | 4.3★ (20) | No | Yes | Jul 2026 | ||
| 4 | Free | 4.0★ (4) | No | No | Aug 2026 | ||
| 5 | Free | — | No | No | May 2026 | ||
| 6 | Free | 4.5★ (2) | Yes | No | Jul 2026 | ||
| 7 | Free | 4.8★ (1.1K) | No | Yes | Sep 2026 | ||
| 8 | Free | 5.0★ (3) | Yes | Yes | Sep 2026 |





Create and customize your own high-intensity interval training routines with a library of exercises. Use the built-in timer to complete workouts and share them with others. No equipment is required.






Create and schedule custom workouts directly on your Apple Watch. Tailor intervals, warm-ups, and cool-downs with time or distance-based steps. Receive real-time alerts for pace and heart rate to optimize your training.




Design personalized fitness routines on your iPhone, then seamlessly transfer them to your Apple Watch. Supports a wide range of activities from running and cycling to yoga and strength training, with options for simple goals, advanced intervals, and paced efforts.