Beta Built for real indoor rides — device support varies. Your workout data stays on your device.

Train with power. Pay once.

Indoor cycling without another subscription. RitmoSync connects to your FTMS smart trainer, shows live power zones, and runs structured workouts — free in Chrome or as a Mac app.

Open in Chrome. Pair your trainer. Go. Use the web app in Chrome or Edge (Web Bluetooth), or install the Mac desktop app. No account required for the free tier.

Open web app — free Download for macOS See how it works

Web Bluetooth requires Chrome or Edge on desktop. Not supported in Safari or most mobile browsers. Mac app requires Apple Silicon (M1 or later).

Why riders choose RitmoSync

Connect your trainer. See your zones. Ride.

View live metrics and zone tracking for free. Pro unlocks custom programs, saved history, and CSV/FIT export.

RitmoSync live power, cadence, and FTP zone bar during a workout Live power & zones
Real-time power, cadence, and zone bar — live stats and zone summaries during your ride.
RitmoSync training history with session stats and FIT export options Training history & FIT export
Save sessions, review history, and export FIT files with RitmoSync Pro.
RitmoSync custom workout builder with zone sections and interval notes Custom workout builder
Build and save your own interval programs with zone targets and section notes.

How it works

  1. Open the app

    Go to RitmoSync web app in Chrome or Edge, or download the Mac app and open the DMG to install.

  2. Connect your trainer

    Pair your FTMS-compatible smart trainer or power meter via Bluetooth. Not sure if yours qualifies? Run the free compatibility test or see our FTMS equipment guide.

  3. Set FTP and pick a workout

    Enter your FTP in the menu to calibrate zones. Choose a built-in program, build your own intervals (Pro), or follow open riding. Need FTP? See our 20-minute test guide.

  4. Ride and review

    Watch live zones and session stats as you ride — the free tier shows metrics on screen only. With Pro, sessions are saved locally and you can export CSV or FIT to Strava.

Guides

Practical articles for indoor cyclists — trainer setup, FTP, and honest comparisons.

View all guides →

Your workouts stay on your device

Structured intervals. Real power data. No account required.

Common questions

Why not just use Zwift?
Zwift is great for worlds and group rides. RitmoSync is for focused power workouts, local data, and a one-time Pro price. Read the comparison.
Is it compatible with my trainer?
Works with FTMS-compatible trainers and many power meters over Bluetooth. Still beta — test pairing free in the app before buying Pro. See compatible equipment.
Safari or iPhone?
Web Bluetooth needs Chrome or Edge on desktop. Mac app for Apple Silicon. Mobile Safari isn’t supported yet.
$40 is expensive
Compare to roughly $180–240 per year for major platforms. One-time Pro if you want history and FIT export. Free tier covers live training.
It’s beta — should I wait?
Free tier lets you validate trainer pairing risk-free. Pro buyers get roadmap features as they ship.

Roadmap

What we are working on next.

RitmoSync Pro

$39.90 One-time license · no subscription

When you want structured power work without another monthly bill.

  • Full training history stored locally
  • Custom workout programs
  • Export the 1-second stream plus 30s and zone CSV summaries — or FIT for Strava and TrainingPeaks. CSV column guide
Get Pro — $39.90

Purchase and license delivery via our checkout provider. See Terms of Service.