Tempo training,
finally on the clock.
The 4-phase strength timer for serious lifters. Counts every second of every rep , 3-1-2-0, 5-5-5-5, or any tempo your coach prescribes. Voice-controlled, 100% on-device. No account. No ads.
Tempo training without
a dedicated timer is broken
Tempo notation (like 3‑1‑2‑0) is how coaches prescribe time under tension. But no major gym app actually times the phases for you.
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Generic fitness apps only have rest timers
Strong, Hevy, JEFIT - great for logging, but they count rest between sets, not the tempo within each rep.
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Counting in your head doesn't work
Mental counting drifts, especially under load. Your "3 seconds" becomes 1.5 seconds by set 4.
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Touching your phone mid-set isn't possible
Chalk, gloves, sweat, grip. You need both hands on the bar - not on your screen.
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Repko solves all three
Phase-by-phase timing with audio/visual cues, voice-controlled start, and a screen readable from across the gym.
Built for the gym,
not the boardroom
Every feature exists because a real lifter needed it mid-set.
4-Phase Tempo Timer
Eccentric → Hold → Concentric → Top. Each phase gets its own color, countdown, and audio cue. You always know where you are in the rep.
Voice Control
Say "GO" to start your set. No touching your phone - works with chalk, gloves, or sweaty hands. On-device processing, nothing sent to any server.
Gym-Proof Display
Full-screen phase colors and a 200pt countdown visible from meters away. Phone on the floor, on a bench, across the rack - you'll always see the count.
Live Activity & Dynamic Island
Switch to Spotify, check a message - the countdown keeps ticking in your Dynamic Island and Lock Screen. Never lose your place.
Unilateral Support
Single-arm curls, lunges, pistol squats. Repko automatically runs both sides with a prepare phase between left and right.
Motivation Beeps
Accelerating beeps during long holds keep you locked in. Phase-transition clicks tell your ears what your eyes already know.
From setup to final rep
in under 10 seconds
Set your tempo
Pick a preset like 3-1-2-0 or dial in a custom tempo. Set your reps, sets, and rest time.
Say "GO"
Place your phone anywhere visible. Say "GO" when you're under the bar , the timer starts hands-free. Voice processing happens on-device, never on a server.
Follow the phases
Full-screen colors, countdown beeps, and voice cues guide you through every phase of every rep.
Track everything
Every set, every TUT, every personal record, automatically logged. Your last 10 exercises are free, forever.
One app, every tempo protocol
Whether you're doing slow eccentrics for hypertrophy or explosive power work, Repko adapts to your program.
Hypertrophy / TUT Training
Maximize time under tension with controlled eccentrics and deliberate pauses. Perfect for bodybuilding and muscle growth programs.
Eccentric Overload
4-second negatives build tendon strength and control. Essential for calisthenics progressions like muscle-ups and planche work.
Power & Explosiveness
Controlled descent, explosive concentric. Use for bench press, squats, or plyometric push-ups where speed matters.
Rehab & Isometric Holds
Long phases for physical therapy, joint rehab, and isometric training. Motivation beeps keep you honest during 5-second holds.
Train for free.
Forever.
The 4-phase tempo timer, the reason Repko exists, is free for everyone. No trial. No paywall on the core feature. Pay only if you want deep analytics and power-user tools.
- Full 4-phase tempo timer, every phase, every rep, every tempo
- Voice control, hands-free "GO" before each set
- 8 built-in presets + up to 3 custom presets
- Last 10 exercises with full summary, weight, and RIR tracking
- 74-achievement skill tree, every node unlockable, no PRO gates on progression
- Dynamic Island & Lock Screen live activity
- Zero ads, zero accounts, zero data sale
- Try PRO free for 7 days, no card required for the in-app preview
- VCER voice mode, voice control on every single rep
- Charts & analytics, TUT trends, volume, personal records
- Unlimited history, every workout you've ever done
- CSV export + muscle group filter + training archetype
- Unlimited custom presets + 8 phase color themes
- TTS voice cues + custom trigger words
Try PRO free in two ways: a 7-day in-app preview (no card required) or Apple's 7-day free trial via StoreKit (card required, starts when you tap Subscribe). After either trial, your account stays on free unless you subscribe, your data stays, PRO features lock back.
PRO pricing If you decide PRO is for you
Repko's full timer is free, including voice on first rep, 10-session history, and 74 achievements. PRO unlocks voice on every rep, charts, exports, and 8 themes. After your 7-day PRO preview, you stay on free unless you subscribe, your data stays, PRO features lock back.
Two ways to try PRO free: a 7-day in-app preview (no card, starts automatically) and Apple's 7-day free trial via StoreKit (card required, starts when you tap Subscribe). Use either or both. All prices in USD. Local prices may vary. Subscriptions managed in your Apple ID. Privacy policy.
Start lifting with tempo today.
Free forever , including the 4-phase timer, voice on first rep, and 74 achievements. PRO is optional, with two free trials totaling up to 14 days.