Interval Timer: Workout, HIIT

In-app purchases
4.7
2.65K reviews
100K+
Downloads
Content rating
Rated for 3+
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About this app

All-purpose timer for activities like HIIT (High intensity interval training), Tabata, Fitness, Workout, Sports, Running, Cardio, Stretching, Yoga, Meditation, Boxing, Kickboxing, Circuit training and other interval training.

Features:
- Simple mode for quick configuration
- Advanced mode for custom timers
- Save own timer presets to start your workout right away
- Text to speech: Hear which exercise comes next
- Control the timer from notifications & lock screen
- Statistics: Set a weekly goal, track your progress, check your active days

Wear OS Companion App:
- Always keep an eye on your workout, right on your wrist
- Control the timer on your watch
- Record your heart rate throughout your entire workout and analyze your heart rate zones in the phone app
- Transfer your saved timers to your watch and train completely without a connected phone

Privacy friendly:
- No registration
- No ads
- No internet connection required
- All data is saved locally on the device

***** Important Note *****
Some devices (especially Huawei, Xiaomi, Samsung, OnePlus) have a very aggressive energy-saving mode. Due to this, background processes are quickly terminated. Therefore, it is necessary to disable the energy-saving mode for this app. Please note that further settings may also be necessary depending on the device.

Permissions:
- Phone status: The "Pause timer on incoming calls" feature requires the permission to read the phone status on Android 12 and above. If you want to use this feature, you can grant this permission in the app's settings.
Updated on
Aug 7, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.7
2.57K reviews
Jessica Alexander
August 4, 2025
It is really easy to set up and doesn't interrupt my music as I am working out!! I can set my workouts up and follow the beeps.
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MDev Mobile Apps
August 6, 2025
Hi Jessica, thank you very much for your great review. I'm glad you like the app 😊
Mackenzie Wang
April 7, 2025
I like the app on my phone, it works well and is intuitive. I really wish the app for Wear OS was more robust though, that's the whole reason I downloaded. It doesn't vibrate or beep on my watch between sets, and it has to be started via the phone app. I really need something I can use when I run without my phone and I wish this was it.
1 person found this review helpful
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MDev Mobile Apps
April 8, 2025
Hi Mackenzie, thanks for your feedback. Vibration should actually work on your watch. Maybe there are some permissions missing? A standalone watch app is planned, but I can't say when this will be available. Best regards Matthias :)
Edward King
June 6, 2025
brilliant but insane. It works great, but once I've started the timer it's impossible to go back and adjust the interval times, there's no 'settings' button, nothing, this is driving me insane, I might have to find another timer. Edit - I've found a way, I have to kill the app, open the app, and then press back button. Would be much easier if there was a settings button.
10 people found this review helpful
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What’s new

- Saved timers can now be transferred to the Wear OS Companion app. This allows you to train completely without a phone (phone and smartwatch app update required)
- Heart rate zones can now be displayed in the Wear OS app during training
- Adjustments for Android 15
- General improvements and bug fixes