Kaizen Timer vs PeakTimer

Kaizen Timer is a customizable interval timer for boxing, HIIT, Tabata, treadmill workouts, strength training, and more. Build simple work–rest intervals or create advanced multi-phase workouts that match exactly how you train. Start quickly with ready-made presets, or customize every phase, round, work period, and rest period. FEATURES • Presets for popular training styles • Fully customizable work and rest intervals • Advanced phase sequencing for complex workouts • Clear visual and audio timers • Accurate round and phase tracking • Reliable timing when backgrounded or locked • Home Screen widgets for quick access • Light and dark mode support • Optional Apple Health integration for workouts and calorie estimation • Export completed workouts • Available in multiple languages, including: English, French, German, Italian, Russian, Spanish, Japanese, Chinese BUILT FOR CONSISTENCY Set your training intensity and let Kaizen Timer handle the structure. Timers stay accurate even during interruptions, helping you stay focused through every round. FREE TO USE All Kaizen Timer features are available for free. An optional support subscription helps fund ongoing development, but subscribing is never required to access features or content. Train smarter. Stay focused. Improve every round. Terms of Use: https://kaizentimerapp.com/terms.html Privacy Policy: https://kaizentimerapp.com/privacy.html

PeakTimer is a customizable interval timer for any timed workout or training session — HIIT, strength, running, cycling, boxing, yoga, mobility, climbing, breathwork, and anything else built around timed segments. Build it once, use it everywhere — your routines sync across all your devices. Build routines from your own intervals. Each routine plays through a sequence you design — work, rest, hang, stretch, anything you name — across sets and rounds, with optional prepare and cooldown phases. Audible beeps count down the last three seconds of every interval so you can keep your eyes off the screen. — TAILOR EVERY ROUTINE • Name your intervals — "Work", "Hold", "Hang", "Stretch", whatever fits • Pick colors that read at a glance during a set • Set strength targets in kilograms, pounds, or as a percentage of your max • Configure prepare, rest between rounds, rest between sets, and cooldown independently • Group routines into collections (Hangboarding, HIIT, Mobility…) — STAY FOCUSED MID-WORKOUT • Big countdown that reads from across the room • Color-tinted phase background tells you at a glance what you're doing • Preview row shows what's next so you can mentally prepare • Round / set / interval pip counters for at-a-glance progress • Pause, skip, or restart any phase with one tap • Optional screen wake-lock so the screen stays on during the workout — HANGBOARDING & STRENGTH WITH A TINDEQ PROGRESSOR (optional) • Pair a Tindeq Progressor wirelessly over Bluetooth for live force readings • Real-time chart shows your pull through every interval against your targets • Calibrate your max strength once, then set per-interval targets as a percentage — SYNC ACROSS DEVICES (optional) • Anonymous by default — your routines stay on your device • Sign in with Apple or Google to sync routines across all your devices • Delete your account and all your data from inside the app at any time Built for runners, climbers, lifters, yogis, and anyone who wants their interval timer to do exactly what they tell it to.