Intertakt

Every interval timer looks the same on a quiet desk. The differences show up in the messy middle of a session: phone face-down since the first beep, a call breaking in mid-round, the app switched away between sets. Intertakt is built for exactly that middle. Set your HIIT, Tabata or EMOM plan once, tap start, and put the phone away: a clear voice announces every interval and round change, countdown beeps mark the approach, and both ride over your own playlist, each channel at its own volume. The session keeps running with the screen off — in a pocket, on Do Not Disturb — and when the call ends it resumes from the exact second it stopped, not from the top of the round. The free tier is the whole timer, unlimited: 0 ads, ∞ sessions, 0 accounts. Premium — unlimited custom plans, history, JSON export — is a one-time purchase, not a subscription. Built with Flutter, offline-first. Coming soon to Google Play; the waitlist and founding pricing are open at intertakt.com.