CycleThing turns your iPhone, iPad, or Mac into a high-frequency cycling cockpit. Pair any Bluetooth FTMS or Tacx FE-C smart trainer, lock in ERG intervals, visualize live telemetry with 60Hz Metal charts, and export directly to your favorite training platforms.
Native SwiftUI and Metal performance with zero bloat, zero mandatory accounts, and complete control over your smart trainer.
Connect smart trainers, power meters, heart rate straps, and cadence sensors over Bluetooth Low Energy with automatic reconnection.
GPU-accelerated real-time charts render power, heart rate, and cadence with buttery-smooth 60fps responsiveness.
Jump straight into proven interval sessions or bring your own custom `.zwo` workout files.
Export standards-compliant `.fit` files anywhere or connect your training accounts for one-tap and automatic uploads.
First-class integration with Apple's health and cloud frameworks across iPhone, iPad, and Mac.
Your biometric and training data stays on your devices and in your private iCloud container—never on developer servers.
High-contrast typography and color-coded Coggan zones keep your targets readable even during all-out intervals.
Live 60Hz telemetry chart, interval countdown, and zone profile graph.
Instant ERG, Simulation slope, and Resistance controls with 8 live metrics.
Built-in interval sessions with TSS/IF badges plus `.zwo` file import.
Review completed workouts, lap breakdowns, and upload status.
Configure FTP, weight, 7 Coggan power zones, and connected services.
