Burstly

Burstly is a powerful interval timer designed specifically for high-intensity interval training (HIIT) enthusiasts. Create unlimited custom workout routines with precise work and rest periods, track your progress, and stay motivated with haptic feedback.

Key features:
- Customizable work and rest intervals from 5 seconds to 10 minutes
- Pre-built HIIT templates for quick workouts
- Visual countdown with large, easy-to-read timers
- Round and cycle tracking for complex workout structures
- Pause, resume, and skip functionality during workouts
- Workout history to monitor your training consistency
- Dark and light theme support
- Completely offline - no internet required

Whether you're doing Tabata, circuit training, or custom interval workouts, Burstly keeps you focused on your training while managing the timing perfectly. The intuitive interface lets you set up workouts in seconds, while the reliable countdown system ensures you never miss a beat.

Perfect for home workouts, gym sessions, boxing training, cycling intervals, running drills, and any fitness routine that requires precise timing. All your data stays private on your device with no registration required.