Interval Timer: Workout, HIIT

In-app purchases
4.6
2.61K reviews
100K+
Downloads
Content rating
PEGI 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
- Record your heart rate throughout your entire workout and analyze your heart rate zones (Wear OS companion app required)

Wear OS Companion App:
- Always keep an eye on your workout, right on your wrist
- Control the timer on your watch

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
22 Jul 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
2.53K reviews
Mackenzie Wang
7 April 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
8 April 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 :)
Lauren K
17 July 2025
I combed through many interval apps and this is the one I installed because it's not a data parasite like the others were. Apparently some developers think that because I sacrificed myself at the altar of Google that I'd be willing to sacrifice myself at their altars as well. lol no. (dramatic, I know) Anyway, this app does exactly what I wanted it to do. Custom timed sets and rests that can be saved. The app is very lightweight and responsive. I am considering purchasing the pro version.
1 person found this review helpful
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MDev Mobile Apps
20 July 2025
Hi Lauren, thank you very much for your review. I'm glad you like the app 🙂
Emps Rd
27 June 2025
Perfect app. I've been using it for Japanese walking / interval walking and it is the perfect app for this. It lets you set intervals, how many and lets you set a rest period between if you need. The alerts are unobtrusive and the app works in the background with spotify/youtube music playing in the foreground or with the screen off. Thanks so much for this great app!
1 person found this review helpful
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MDev Mobile Apps
28 June 2025
Hi Emps, thank you very much for your great review. I'm glad you like the app :)

What's new

Improved stability