The ultimate interval timer app for iOS. Maximize your workout efficiency, burn more calories, and achieve your fitness goals faster with scientifically-proven high-intensity interval training.
Download Free on App StoreHigh-Intensity Interval Training (HIIT) and Tabata are revolutionary workout methods that alternate between intense bursts of activity and brief recovery periods, delivering maximum results in minimum time.
High-Intensity Interval Training involves short bursts of intense exercise followed by rest periods. Typically 15-45 seconds of work with 10-60 seconds of rest, proven to boost metabolism for up to 24 hours after your workout.
A specific HIIT format: 20 seconds of ultra-intense exercise followed by 10 seconds of rest, repeated 8 times (4 minutes total). Originally developed by Dr. Izumi Tabata, proven to improve both aerobic and anaerobic fitness.
Research shows HIIT can burn 25-30% more calories than other forms of exercise, improve cardiovascular health, increase insulin sensitivity, and preserve muscle mass while burning fat.
Transform your body and health with scientifically-proven benefits of interval training
HIIT burns 25-30% more calories than steady-state cardio and continues burning calories for hours after your workout (EPOC effect).
Reduces heart rate, blood pressure, and improves cardiovascular efficiency. Studies show significant improvements in just 8 weeks.
Boosts your metabolic rate for up to 24 hours post-workout, helping you burn calories even while resting.
Get better results in 15-20 minutes than traditional hour-long workouts. Perfect for busy schedules.
More effective at reducing visceral fat (dangerous belly fat) compared to steady-state cardio.
Releases endorphins, reduces stress, improves mood, and enhances cognitive function and focus.
Professional-grade features designed to maximize your workout efficiency and track your progress
Create unlimited custom routines with flexible work/rest intervals, preparation time, and number of sets. Perfect for HIIT, Tabata, circuit training, and more.
Track your progress with detailed workout history, completion rates, and performance analytics. See your fitness journey unfold with comprehensive statistics.
Voice announcements and customizable sounds keep you focused. "Get Ready," "Go," and "Rest" commands so you never need to look at your phone.
Native iOS app with stunning visuals, smooth animations, and intuitive interface. Designed specifically for iPhone and iPad with iOS best practices.
Continues running even when your phone is locked or you switch apps. Perfect for outdoor workouts or when using other fitness apps.
Download free with all core features. Optional one-time purchase to remove ads and unlock premium experience. No subscriptions required.
Beautiful, intuitive design that keeps you motivated and focused
| Feature | Our App | Generic Timer Apps | Expensive Alternatives |
|---|---|---|---|
| Custom Intervals | ✅ Unlimited | ❌ Limited | ✅ Yes |
| Workout History | ✅ Detailed Analytics | ❌ None | ✅ Basic |
| Voice Announcements | ✅ Smart Audio Cues | ❌ Beeps Only | ✅ Yes |
| Background Operation | ✅ Full Support | ❌ Limited | ✅ Yes |
| iOS Optimization | ✅ Native Design | ❌ Generic UI | ⚠️ Cross-platform |
| Price | ✅ Free + Optional Premium | 💰 Limited Features | 💰 $9.99/month |
Join thousands of users who have already transformed their fitness with our interval timer app. Download now and start your journey to a healthier, fitter you.
⭐⭐⭐⭐⭐ Rated 4.8/5 stars by 1000+ users
Compatible with iOS 18.5 or later • Free download • Premium upgrade available