Interval Pro Timer vs 1SecondLap

Interval Pro is a focused interval timer for workouts, study sessions, and anything else that benefits from a clean rhythm of work and rest. Build a timer in seconds. Pick a work interval, a rest interval, the number of rounds, and a color theme. That's it. No accounts, no ads, no data collection — your timers stay on your device. WHAT YOU CAN BUILD • HIIT — 30s work / 15s rest × 8 • Tabata — 20s work / 10s rest × 8 • Pomodoro — 25m work / 5m rest × 4 • Boxing rounds — 3m work / 1m rest × 12 • Strength sets, mobility flows, breathwork, focus sprints — anything you can express as work and rest FEATURES • Custom work and rest intervals from seconds to many minutes • Configurable round count • 3-second countdown before each round • Audio cues for transitions, with optional countdown beeps • Haptic feedback on each segment change • Background-safe — local notifications keep you on track when the screen is off or you're in another app • Light and dark themes, plus per-timer color themes • Save unlimited named timer presets • Edit, replay, and delete with a long-press • Keep-awake mode while a workout is running PRIVACY FIRST Interval Pro does not collect, transmit, or store any personal information. Everything you create lives on your device. There are no accounts, no analytics, no third-party trackers. Delete the app and the data is gone. DESIGNED TO STAY OUT OF THE WAY The run screen is large, high-contrast, and free of clutter. Glance at it across the gym floor or your desk and you'll know exactly where you are in the workout. Built by an independent developer. Feedback welcome at madeleine@woodbury.dev.

One app for your whole workout — and your data never leaves your phone. 1SecondLap combines a GPS run tracker, interval workout timer, Bluetooth gym-machine console and reflex trainer in one free app. No account, no ads, no subscription. RUN OUTDOORS • Distance, pace and route with automatic per-km splits announced out loud • Ghost runs: race your best previous run on the same route and hear how far ahead or behind you are • Spoken pace coach — pick a target pace and get "speed up / slow down" cues • Distance goals with voice announcements, route maps and GPX export • Keeps tracking with the screen locked; Live Activity on the lock screen INTERVAL WORKOUTS • Reps, work and rest with voice countdowns — Tabata, HIIT, EMOM, boxing templates plus your own presets • ERG mode: with a compatible smart trainer, the app sets the trainer's resistance for every work and rest interval automatically GYM MACHINES • Connect Bluetooth bikes, treadmills, rowers and cross-trainers (FTMS/CSC) • Live cadence, power, speed, stroke rate and heart rate from a strap • Heart-rate zones with spoken zone cues and per-session time-in-zone PROGRESS • Activity heatmap, weekly volume and training load from your heart-rate data • Pace, power and reaction-time trends with personal records and streaks • Brain + body: see how your reaction time changes right after exercise • Workouts save to Apple Health APPLE WATCH • Stopwatch, timer and interval workouts on your wrist PRIVACY • Everything is stored on your device. No sign-up, no tracking, no analytics.