Best apps like HIIT Timer - Interval Flex

9+ similar apps compared and reviewed

3.9 avg rating
8 free apps
Updated October 2026

HIIT Timer is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to HIIT Timer

John Scott Yoga#2
2.0(6 ratings)
$1.99In-App Purchases
John Scott Yoga screenshot 1
John Scott Yoga screenshot 2
John Scott Yoga screenshot 3
John Scott Yoga screenshot 4
John Scott Yoga screenshot 5

Learn the Ashtanga Vinyasa Yoga Primary Series with detailed vinyasa counts and instructional audio. This app offers a portable format for reviewing practice and understanding the intricacies of the vinyasa count, with additional content available for purchase.

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4
Total Athlete Performance
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Lumos Sleep
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This app helps you combat jet lag, improve sleep during night shifts, and wake up feeling refreshed. It uses patented technology and a proprietary algorithm to regulate your body's natural circadian rhythm, offering tailored programs for various sleep schedules.

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This app uses your Apple Watch to monitor on-water rowing performance, providing detailed metrics like stroke rate, speed, and heart rate. Analyze your sessions with graphs and share them across popular platforms. It's designed for rowers of all levels aiming to improve their training.

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VO2 Max Trainer: HIIT, Zone 2
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Measure, track, and improve your VO2 Max with a variety of fitness tests and personalized training plans. Features include HIIT and Zone 2 workouts, progress tracking, and integration with Apple Watch and HealthKit.

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Training121
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