IntervalFlow vs Shift

A HIIT and interval timer that stays out of your way. No ads. No tracking. Nothing interrupts your workout. WHY INTERVALFLOW • No ads, ever — not a banner, not a video, not between rounds. Your countdown is never covered and your audio is never cut. • No tracking — no analytics, no advertising identifier, no account. Your workouts stay on your device. • Live Activity and Dynamic Island — the current phase, the countdown, and the round stay on your Lock Screen. Check mid-set without unlocking. BUILT FOR REAL WORKOUTS • Ready-made presets: Tabata, HIIT 40/20, EMOM, boxing rounds, and multi-set circuits. • Custom builder: prepare, work, rest, rounds, sets, rest between sets, and cooldown — to the second. • A countdown you can read across the room, with each phase in its own colour: work, rest, get ready, cooldown. • Sound, haptics, and voice cues, so you can keep your eyes off the screen and on the set. IT KEEPS THE RECORD • Every finished session is logged on its own — time, rounds, and an estimate of calories. • A daily streak and a weekly count, for the weeks when motivation needs a number. Made for HIIT, Tabata, cross-training, boxing, running intervals, stretching, EMOM, and circuits — at the gym or on your living room floor. Open it, tap a preset, and start. That is the whole app.

Shift is an interval timer made as simple as possible (but not any simpler). Set up in seconds: • Work • Rest • Repeat How long you exercise – how long you recover – how many rounds. That’s all. Tap Start and Shift takes it from there. Finished workouts stay in History, so your last workout can be your next preset. Load it and go. A few essentials: • Voice cues or simple tones that don’t lower your music • Keeps time in the background • A Live Activity on your Lock Screen and Dynamic Island • A workout display you can turn sideways • Made for iPhone and iPad Completely free. No ads, no paywall, no subscriptions. No accounts, analytics or tracking. Your workouts stay on your device.