Interval Timer: Boxing HIIT calls every round and rest out loud so you keep your hands up and your eyes off the clock.
Get it on Google PlaySet any work and rest length, number of rounds and a prep countdown before the first bell.
A 10-second warning tells you the round is nearly up — no need to glance at the screen.
Big, clear sounds and vibration cut through music and a noisy gym floor.
Stack rounds into sets with longer breaks between them for full circuit workouts.
Giant colour-coded time — red for work, green for rest — readable across the room.
Keeps timing with the screen off and your playlist blasting from the same phone.
Classic amateur-to-pro round structure for bag work and sparring.
Four brutal minutes of maximum-effort intervals.
Build your own circuit and loop it as long as you can hold form.
Time bag rounds, pad work and sparring with a real bell instead of a wall clock.
Push through max-effort intervals without ever thinking about the numbers.
Prop the phone up, hit start, and let the voice cues run the whole session.
Run a room full of athletes through synced rounds with alerts everyone can hear.