Blitzo HIIT Timer

Blitzo HIIT Timer is a focused interval training tool built for people who take their workouts seriously. No accounts, no subscriptions, no clutter — just a clean, reliable timer that keeps you moving through every round.

Set your work phase duration, rest phase duration, and number of rounds. Blitzo handles the rest, automatically switching between intervals and notifying you with haptic vibration so you never have to glance at the screen mid-rep. A clear phase indicator always shows whether you are in a work or rest period, and the round counter keeps you oriented throughout the session.

All workout configurations are stored locally on your device. Nothing leaves your phone, and nothing requires a network connection. The app works fully offline from the first launch.

Key features:

- Configurable work and rest durations per session
- Round counter with automatic phase transitions
- Vibration alerts between intervals — no audio required
- Dark, light, and system theme modes
- Haptic feedback toggle in settings
- Default start tab and sort order preferences
- No registration, no account, no data sent anywhere

Blitzo is designed to stay out of your way during a workout. Large, readable phase indicators and a minimal interface mean less time reading the screen and more time focused on the set in front of you.