HIIT Trainer vs Shift

HIIT Trainer is a minimalist interval timer: set your work, rest, exercises, and rounds, tap start, and let it run. ● Automatic timing — warm-up → work → rest → round rest flows on its own; no need to touch your phone ● Voice coach — English or Chinese callouts for each phase and exercise name, with countdown beeps and haptics, so you never miss a cue even with the screen locked in your pocket ● Background music — energetic on work, chill on rest, fading out at the end to let the countdown through; import your own tracks too ● Energy-ring interface — big countdown + progress ring, light/dark adaptive, readable at a glance mid-set ● Workout history — every session saved automatically: day streak, weekly minutes, full history, and CSV export ● Daily reminders — schedule per weekday to build the habit ● Zero friction — no account, no ads, no data collection; your workout data stays on your device Great for HIIT, Tabata, jump rope, indoor cycling, and any bodyweight routine built on work/rest intervals. Universal for iPhone and iPad. The interface is English by default; you can switch to Chinese in Settings → HIIT Trainer → Language.

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.