Which cycling computers does this app support?

Answer: all that support music playback.

Does it support Quick Capture feature

Yes, it does. In order to save battery, every time you trigger a recording, the camera will start it even if It's powered off, and correspondingly the camera powers off automatically once the recording is finished.

Does it support Smart Watches?

Yes, it supports Smart Watches. The app supports all the watches that allow you to control the music playback on the phone.

Does this app support the highlight tagging feature?

Yes, you can add highlights on a go just pressing on "next song" button on a playback

The app can be used with GoPro® HERO10/HERO11/HERO12 cameras. This product and/or service is not affiliated with, endorsed by or in any way associated with GoPro Inc. or its products and services. GoPro, HERO and their respective logos are trademarks or registered trademarks of GoPro, Inc.