Intertakt - Interval Timer for HIIT and Tabata

An interval timer that keeps time the way an old factory floor ran: nobody stops the work to read a clock - the whistle carries the count over the noise. Intertakt announces every interval by voice over your own playlist, each channel with its own volume, keeps running with the screen off, and resumes an interrupted round to the exact second. The free tier is unlimited: 0 ads, unlimited sessions, no account. Premium is a one-time purchase, not a subscription.