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 ads, and no data sales. 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 account. No data sales. Usage analytics are opt-in and off by default, and crash reports can be switched off in Settings. Speech recognition never leaves your device. The version of a fitness app I wanted to install on my own phone.

Pricing

• Free: the full 4-phase timer with per-phase beeps and countdowns, hands-free GO and STOP before the first rep of each set, all 1,083 exercises, RIR and weight logging per set, the complete 74-node Skill Tree, and your 10 most recent sessions.

• Pro $3.99/month or $24.99/year (save 48% annually): voice control on every rep plus the REPEAT command, spoken rep countdowns and rest call-outs, custom trigger words, charts and lifetime analytics, unlimited history, CSV export, unlimited custom presets, and 8 phase color themes.

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 shipped in 1.1. Still on the list: 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.