iOS APP — PUBLIC BETA

CYRACE

Turn your smart trainer into a race course simulator. Load real GPX routes, feel every gradient, and arrive on race day with the course already in your legs.

Engineered for precision

Every feature is built to bring the real course to your trainer — no compromises, no cloud dependency.

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Real GPX Routes

Load any GPX file and ride the exact elevation profile of your target race. Every climb, every descent, calculated with precision using Haversine distance and gradient interpolation.

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FTMS Smart Control

Direct communication with your trainer via the Bluetooth FTMS protocol. Real-time simulation commands adjust resistance to match the gradient of your route as you ride.

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ERG Mode

Lock in a target power and let the trainer hold it regardless of cadence. Quick-set buttons for recovery, endurance, sweet spot, and FTP zones.

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Virtual Gearing

A full virtual drivetrain with configurable chainrings and cassette. Shift gears with physical buttons and feel the resistance change on your trainer.

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Zwift Ride Controller

Full hardware button support for the Zwift Ride controller. Shift gears, adjust power, switch modes, and navigate the app without touching your phone.

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100% Private & Offline

No accounts, no tracking, no cloud. Your ride data stays on your device. The app doesn't connect to the internet — ever.

Quick facts

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iOS 26+

iPhone and iPad

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No Data Collection

Zero tracking, zero analytics

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Free

No subscriptions, no in-app purchases

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Bluetooth Only

No internet required