YCAY
[2025]
All work
BikeTrack
Heart rate and power, on your wrist.
A free Apple Watch app for indoor cycling, running and walking. It reads power from compatible Bluetooth equipment and heart rate from the Watch, and shows both in zones you set.
- Platform
- Apple Watch
- Year
- 2026
- Built with
- Swift, SwiftUI, watchOS, Core Bluetooth, HealthKit, Swift Package Manager
On the watch
Heart rate in context.
Live heart rate, time in zone, and the session’s range at a glance.
Screens show a simulated workout.
How it’s built
- Equipment
- Core Bluetooth connects compatible FTMS bikes and treadmills, Cycling Power, and Speed & Cadence sensors.
- Analytics
- A separate RideCore Swift package parses the packets and computes the workout analytics, so the SwiftUI app stays small.
- Health
- HealthKit saves each session to Apple Health and Fitness. No account, no subscription, and no analytics in the app.
Available readings depend on the connected equipment.