Best apps like 4x4 Timer Interval Training

10+ similar apps compared and reviewed

4.2 avg rating
10 free apps
Updated August 2026

4x4 Timer Interval Training is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to 4x4 Timer Interval Training

ChattyFit AI Personal Trainer#1

ChattyFit AI Personal Trainer by 51code Co., Ltd.

Weight Loss & Muscle Building
Editor's Choice
💪 Health & Fitness
5.0(4 ratings)
FreeIn-App Purchases
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This AI-powered fitness coach creates personalized workout plans for muscle building and weight loss, adapting to your equipment and goals. It offers exercise guidance, progress tracking, and on-demand chat support to help you stay consistent and master your form.

Tabata & HIIT Timer - PEAKVO2#2

Tabata & HIIT Timer - PEAKVO2 by Cristian Serb

Interval Training & Endurance
Strong Contender
💪 Health & Fitness
0.0(0 ratings)
FreeIn-App Purchases
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This app provides science-backed interval training protocols to improve cardiovascular fitness and long-term health. It guides users through warm-ups, work intervals, and cool-downs with customizable timers and activity tracking.

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This app provides a customizable interval timer for HIIT and Tabata workouts. It offers unlimited timer creation with extensive sound and voice reading options, background notifications, and dark mode. All features are free to use.

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VO2 Max Trainer: HIIT, Zone 2
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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Squats Counter
Squats Counter
Squats Counter
Squats Tracker & Workouts
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Easily track your daily squat count and progress towards your fitness goals. Set personal targets and view detailed statistics to monitor your performance over time. This app helps you stay motivated and consistent with your squatting routine.

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Zone 2 AI: Vo2 Max & Endurance
Zone 2 AI: Vo2 Max & Endurance
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This app guides you through personalized Zone 2 and high-intensity sprint training protocols to improve mitochondrial efficiency and maximize VO2 Max. It offers real-time feedback, projects future health outcomes, and tracks your progress towards longevity goals.

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KraftApp for Kieser Training
KraftApp for Kieser Training
KraftApp for Kieser Training
by Westhues Apps
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Manage your Kieser Training workouts digitally. Create, edit, and track your training plans, and access them across devices. Export your progress for trainer discussions.

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