RepZero vs HIIT Workout Timer

RepZero is a weight lifting log and gym workout tracker for iPhone and Apple Watch. Log every set in seconds, see your records the moment you break them, and always know what to train next. It's built for people who want to know they're getting stronger, not just hope they are. LOGGING THAT KEEPS UP WITH YOU RepZero shows one set at a time: tap your weight and reps, log it, and the rest timer starts on its own. Supersets, drop sets, timed holds and cardio all work the way you'd expect. • Plate calculator: which plates go on each side of a barbell, trap bar, EZ bar or Smith machine • Warm-ups in one tap, ramping up to your first working set • Rest timer on your Lock Screen and in the Dynamic Island, with skip and log buttons • New personal records show up live, mid-workout • Start a workout from a widget, Control Center, Siri or Shortcuts BUILT FOR APPLE WATCH Leave your phone in your bag. Start a workout on your wrist, turn the Digital Crown to set weight and reps, and double tap to log. Heart rate and calories go to Apple Health, and everything syncs back to your iPhone. PROGRAMS THAT MOVE YOU FORWARD Follow a program and RepZero plans every session and raises your weights as you progress. Beginner Strength and Dumbbell Foundations are free. Upper/Lower Hypertrophy, Push/Pull/Legs, Strength Waves and Minimalist come with Pro, and so does building your own program from your routines. AN AI COACH IN YOUR POCKET Ask the AI coach about your training, from what to train today to building a new routine. It runs on device with Apple Intelligence on supported iPhones. SEE YOUR PROGRESS, CLEARLY • Estimated 1RM, PRs and records for every lift • Volume, workout and training-time trends • A weekly goal with streaks that give you credit for rest days • Muscle recovery at a glance • A full history of every workout, as a list or a calendar • Achievements that reward consistency START STRONG, STAY ORGANIZED Use a ready-made routine or build your own in minutes, and share routines and programs with a link. Bring your history from other apps with an AI-assisted import. Back up to iCloud, sync across devices with a free account, and export your data anytime. REPZERO PRO Pro is for lifters who want a plan, not just a log. • Coach: ranked next steps after every workout, like adding sets to a lagging muscle or breaking through a plateau, applied to your routines in one tap • Recovery check: reads last night's sleep, heart rate variability and resting heart rate from Apple Health and suggests going lighter or taking a rest day. Those readings never leave your device. • All six programs, plus programs you build yourself • Lift forecasts, strength levels and muscle balance • Unlimited custom routines (free includes 5) • Body measurements, Lift and Progress widgets, and premium themes • The Gainz Goblin: a pixel-art pet on your Today screen, Watch and Live Activity. Train and he stays fed. Skip too many days and he gets hungry. WHOEVER YOU ARE Chasing your first bodyweight bench, running a powerlifting block or just trying to get to the gym three times a week, RepZero shows you it's working and what to do next. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://darkmatterlabs.app/privacy

Stop staring at a stopwatch mid-burpee. This is a HIIT interval timer that calls every work and rest phase out loud, so you stay in the burn and just keep moving until the round is done. Most timers make you glance at the screen between rounds. This one runs the whole session for you: a full-screen ring flips from work-red to rest-teal while voice, beep and haptic cues fire on every phase change and final countdown. Train Tabata, EMOM, sprint ladders or a circuit you build yourself — tap start, follow the cues, empty the tank. WHAT YOU GET - A custom interval builder for work, rest, sets, rounds, warm-up and cooldown - Ready-made Tabata, EMOM, sprint ladder and fat-burn presets to start in one tap - Voice, beep and haptic cues on every phase change plus a 3-2-1 countdown - A full-screen color ring that shows work, rest and set breaks at a glance - Progress tracking with streaks, work minutes, rounds, charts and session history - A halfway voice cue and keep-screen-awake mode so you never lose your place PERFECT FOR - HIIT and Tabata fans who want max effort without watching a clock - Home and gym athletes running circuit, EMOM or AMRAP-style rounds - Runners and cyclists doing sprint intervals and work-to-rest ratios - Anyone building a consistent, short, high-intensity training habit WHY NOT JUST USE THE PHONE STOPWATCH A stopwatch makes you look, tap and count between every round — exactly when you should be moving. This timer runs the full circuit hands-free with audio and haptic cues, so you keep your eyes off the screen and your effort where it belongs. PRIVACY Everything runs on-device. No account, no ads, no tracking — your workouts and stats never leave your phone, and the whole app works fully offline. FULL ACCESS A membership unlocks unlimited custom circuits, the full interval builder, and complete progress tracking (streaks, charts and session history). It is offered as a weekly plan, a yearly plan, or a one-time lifetime purchase. Lace up, tap start, and let the timer run your workout. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com