HeartTX

HEARTTX TERMS

Before your next ride.

Updated 3 November 2026

Fitness use

HeartTX shares live heart rate for fitness and recreation. It is not a medical device and is not intended for diagnosis, treatment or emergency monitoring. Readings and connectivity depend on your watch, fit, system software and receiving device.

Availability and compatibility

HeartTX is available as a free download on the App Store. The tested configuration is Apple Watch Ultra on watchOS 27.0.1 with Zwift on Apple TV. Other configurations and future system updates may behave differently.

Your session

You control when to broadcast. Nearby compatible receivers can connect while a session is active. Stop when finished or select an automatic stop timer. Continuous measurement and Bluetooth use consume battery.

Third-party services

Fitness apps, Apple services and Bluetooth receivers are provided by their respective operators. Their accounts, pricing, compatibility and data practices are governed by their own terms. HeartTX is not affiliated with Apple or Zwift.

License and consumer rights

For App Store downloads, the Apple Standard Licensed Application End User License Agreement applies unless a different license is stated in the listing. Nothing on this page limits rights that cannot be excluded under applicable consumer law.

Contact

Matus Kramarik, U Hrncir 643, Vestec, Czechia.
mat.kramarik@gmail.com

Apple, Apple Watch and Apple TV are trademarks of Apple Inc. Zwift is a trademark of Zwift, Inc. HeartTX is an independent app and is not affiliated with or endorsed by Apple or Zwift.