218+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our 4x4 timer interval training list covers 218+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 2.0★ (1) | No | No | Aug 2026 |
| 2 |  | Free | 4.7★ (24K) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.7★ (2.8K) | No | Yes | Aug 2026 |
| 4 |  | Free | 4.8★ (59K) | Yes | Yes | Aug 2026 |
| 5 |  | $7.99 | 4.8★ (12K) | No | No | Aug 2026 |
| 6 |  | Free | 4.7★ (3.5K) | No | Yes | Aug 2026 |
| 7 |  | $2.99 | 4.5★ (598) | No | No | Aug 2026 |
| 8 |  | Free | 4.8★ (2.1K) | No | Yes | Aug 2026 |
This app provides a simple, distraction-free interval timer for the Norwegian 4x4 training protocol. It guides users through 4 minutes of intense effort followed by 4 minutes of rest, repeated four times, to improve cardiovascular fitness and VO₂ max. The minimal interface ensures focus on the workout.
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 customize interval timers with detailed options for reps, sets, colors, and sounds. Offers flexible display modes, quick actions for navigation, and background notifications. Organize timers with folders and choose between light and dark themes.
This interval training app supports HIIT, circuit, and Tabata workouts with customizable rounds and cycles. It offers background operation, screen flashing, and voice guidance for an enhanced fitness experience. An Apple Watch companion app is also available.
This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.
This app is a versatile interval timer designed for various training styles like Tabata and HIIT. It offers customizable workout parameters, voice guidance, and music ducking for an enhanced training experience. Save your custom workouts and track your progress.
This app helps you manage work and rest periods for various fitness activities. It offers customizable intervals, runs in the background, and allows you to play music during workouts. Save your settings and share your progress.
This app offers advanced interval training timing with customizable modes and the ability to control an external LED display. It integrates with wearables and heart rate monitors for a comprehensive workout experience.
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 customizable interval timer for various workouts, allowing users to set single or multiple work and rest periods. It offers extensive customization options for alarms, program saving, and display, ensuring a tailored timing experience for any fitness routine.
This app provides a versatile interval timer for high-intensity workouts like HIIT and Tabata. Users can create custom routines with adjustable work/rest times, sets, and cycles, and receive voice cues. It functions as a background companion to keep you focused during training.
This app guides you through science-backed interval training for effective workouts at home or on the go. Choose from pre-made routines or create your own, with voice cues and visual feedback to keep you motivated. Track your progress and integrate with other health apps.
This app provides a customizable interval timer for various round-based sports and high-intensity interval training. Easily set times and sounds for preparation, rounds, and rest, with visual and auditory alerts to keep you on track during your workouts.
This interval training app automates your exercise, rest, and cooldown periods for various workouts like Tabata, HIIT, and sprints. It offers customizable intervals, voice guidance, and music integration to enhance focus and workout efficiency. Track your progress with Apple Health integration.
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.
This app provides a versatile timer for various workout styles, including HIIT, Tabata, and circuit training. It offers customizable intervals, background operation, and audible countdowns to keep users focused on their training. Designed for athletes and fitness enthusiasts, it simplifies interval timing for effective workouts.
Organize your running and high-intensity interval training sessions with ease. Quickly set up custom time intervals for running, walking, warm-ups, and cool-downs. Receive voice and vibration notifications for interval changes, and enjoy background music playback.
This app provides a straightforward and visually appealing timer for Tabata workouts. Easily customize workout intervals and rest periods by dragging elements. It offers audio guidance, background music support, and workout history tracking.
Create and guide custom interval training routines with this app. It supports timed and rep-based exercises, offers voice coaching, and logs your workout history with detailed analytics. Track progress over time and organize routines into training plans.
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.