Interval Timer

Lukas Freudenmann

In-app purchases

About this app

Your workout, your rules – and your data stays on your phone.

Interval Timer is a clean, modern timer for HIIT, Tabata, circuit training, running intervals, stretching or any workout built from work and rest phases. Set up a routine in seconds, hit start and focus on your training. The big countdown and clear phase colors tell you at a glance what's next, even from across the room.

🔒 PRIVACY FIRST
• No account, no sign-up
• No tracking, no analytics, no ads
• Your workouts are stored only on your device and never uploaded or sent anywhere
• Works completely offline

⚡ CREATE WORKOUTS IN SECONDS
• Simple editor: sets, preparation, training and rest – done
• Advanced editor: multiple blocks, repetitions, warm-up and cool-down, custom names for every interval
• Add a short description to each workout
• Duplicate, reorder and share workouts or import them from a file

⏱️ TRAIN WITHOUT DISTRACTIONS
• Large, easy-to-read countdown with progress ring
• A distinct color for every phase: prepare, train, rest
• Sounds, voice announcements and vibration so you don't have to look at your phone
• Keeps running in the background and with the screen off
• Your music keeps playing – Spotify & co. just get quieter during announcements

🎨 MAKE IT YOURS
• Pick your own colors and sounds for every interval
• Material You design with dark mode
• Compact list view for many workouts
• Start your favorite workout straight from a home screen shortcut

100% free. No ads, no subscriptions, no paywalls. If you like the app, you can support development with an optional donation via Google Play.

Have fun training! 💪

Ratings and reviews

This is by far the best timer out there. Thank you so much for building it. The customization is excellent. One issue I have with a Galaxy S23 is that the timer in the middle of the circle (time for each individual set) does not change. It only reads zeros during the entire countdown, and the circle itself, I imagine, should slowly dissipate, which it does not. The total time timer works as it should. It would be perfect if that was corrected. Thanks again. Amazing app!

Excellent timer, very programmable. Does the things I want (and likely much more). Nice that the "In app purchases" status in the Play Store consists of an option to donate, not $€ required to unlock features. So I donated. Thanks for creating this app.

Edit : Thanks a lot for the update. Both the problems are solved. (Nice app. The only problem with this is that the timer doesn't work properly when screen is off so if you lock your phone then the timer will not work properly. Please improve this bug. Edit : there is also another problem which is it doesn't save my training routine and puts it back to the default time. So I have to change it everytime I want to use it.)

What’s new

A fresh new look!
• Completely redesigned in Material You style, with a new app icon
• Preparation time for simple workouts
• Many bug fixes and lower battery usage