Interval Timer - Workout Timer & HIIT Training
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! 💪