249+ iOS apps curated and reviewed
Out of 249+ fartlek interval trainer apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | Yes | Aug 2026 |
| 2 |  | Free | 4.7★ (1K) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.8★ (86K) | No | Yes | Aug 2026 |
| 4 |  | Free | 4.8★ (14K) | No | Yes | Aug 2026 |
| 5 |  | Free | 4.8★ (417K) | Yes | No | Aug 2026 |
| 6 |  | Free | 4.5★ (19K) | Yes | Yes | Aug 2026 |
| 7 |  | Free | 4.7★ (24K) | No | Yes | Aug 2026 |
| 8 |  | Free | 5.0★ (4) | No | No | Aug 2026 |
This running app automatically detects spontaneous intervals during Fartlek runs, providing live color-coded feedback on your effort. It also functions as a powerful timer for structured workouts like HIIT and Tabata, offering detailed metrics and syncing with Strava and Apple Health.
This app simplifies interval and Fartlek running by allowing you to set custom targets for time or distance during hard, easy, and rest efforts. It offers detailed post-run summaries, audio and visual feedback, and an Apple Watch app for enhanced training.
Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.
Create and follow custom interval training routines for various fitness activities. This app offers extensive customization for intervals, alerts, and goals, with seamless integration for Apple Watch and Apple Health.
This app offers guided runs, training plans, and community challenges to help users start, continue, and enjoy running. It tracks speed, distance, and GPS routes, providing motivation and expert guidance for various fitness levels and goals.
This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.
This app provides a versatile interval timer for various workout types like Tabata, HIIT, and circuit training. It features a clear, full-screen display, customizable alerts, and background operation. Users can also utilize a stopwatch and countdown timer, with integration for Apple Health.
Create and follow custom interval training routines or choose from pre-built workouts. This app supports various training styles, from high-intensity sprints to tempo control and stretching protocols, with adjustable music volume.
This app provides a customizable interval timer for high-intensity interval training (HIIT) and circuit workouts. Easily set up work, rest, and repeat intervals, track your progress, and integrate with your health data. Enjoy your workouts with background music and notifications.
This app provides a beautiful and intuitive interval timer to help you maximize your workouts. Easily create, customize, and share timers with friends, and enjoy seamless music integration. It's designed to help you reach your fitness goals faster.
This app provides a customizable interval timer for High Intensity Interval Training (HIIT) and Tabata workouts. Easily set up your workout structure with custom sets, action times, and break times for any interval training routine.
