hamy.cz

Android app

Interval Training

A free, offline interval timer for boxing, Tabata, CrossFit, floorball, and field tests. 140+ presets. No account required.

I built Interval Training mainly for my own floorball sessions. It is a phone-first timer: presets, custom rounds, and app-timed field tests, all stored on the device.

Sports it covers include boxing and MMA rounds, Tabata and HIIT, CrossFit circuits, and team conditioning. Field tests include 20 m Beep, PACER, Yo-Yo IR1/IR2, 30–15 IFT, and Bronco.

Workouts stay offline. There are no ads during a round or a test. Optional support lives in Settings only. The longer product page and privacy policy live on the app website.

Timer
  • Interval timer
  • 140+ presets
  • Boxing rounds
  • Tabata
  • CrossFit
  • Floorball
Tests
  • Beep test
  • PACER
  • Yo-Yo
  • Bronco
  • 30–15 IFT

Questions

Is it free?
Yes. The timer, presets, and field tests are free. Optional tips and support ads live in Settings only.
Will ads interrupt a workout?
No. There are no ads during a round or a field test.
Do I need an account?
No. Workouts stay on the device. No sign-in required to train.

© 2026 Michal Hamerník · hamy.cz