May 15th, 2026
New
A voice-controlled tempo timer with Poliquin 4-phase notation (E-P1-C-P2), on-device speech recognition, and RIR tracking. Built for advanced strength lifters and calisthenics athletes who want hands-free control of every rep.
Get Repko on the App Store — free for 7 days
7 days of Pro features. No card needed. $3.99/month or $24.99/year after.
Why Repko exists
I'm a solo developer, and I lift. For years I tried every workout app on the App Store — Strong, Hevy, Fitbod, JEFIT — and every one of them got tempo almost right and missed one detail. None handled Poliquin's 4-phase notation properly. None let me start, stop, and repeat sets with my voice while my hands were on a bar. None ran the speech recognition on-device, where my training data belongs.
So I built Repko. Months of Flutter, one developer, no investors, no analytics piggybacking on your reps, no tracking SDKs. Just the timer I wanted for myself, finally shipped for everyone.
What's in 1.0
4-phase tempo notation. Type a tempo like 3-1-1-0 and Repko cues you through eccentric → pause 1 → concentric → pause 2, every rep, every set.
Voice control. Say "GO" to start, "STOP" to pause, "REPEAT" to roll the same set again. Recognition runs entirely on your device — audio never leaves your phone.
1,083 exercises with sensible default tempos, unilateral handling, and proper direction (down-first vs. up-first per movement).
RIR tracking per set, with weight logging and time-under-tension auto-calculated.
Skill tree achievements that reward how you train, not just whether you trained.
No ads. No trackers. No third-party SDKs. The version of a fitness app I wanted to install on my own phone.
Pricing
Free: core 4-phase timer, manual tempo, basic history.
Pro $3.99/month or $24.99/year (save 48% annually): voice control, full exercise library, RIR tracking, unlimited history, charts, body weight tracking, lifetime metrics, Skill Tree, custom presets, export.
New installs get 7 days of Pro automatically. No card, no commitment. When the trial ends you keep the free tier — your data stays, nothing is taken away.
What's next
I'm building Repko in public. The roadmap and feature requests live on this portal — vote on what ships next. Apple Watch is high on my list. So are mid-workout Quick Save and reusable workout templates.
→ Download Repko on the App Store
Built solo by Szymon. I read every comment on this post — tell me what's missing.