HeartCast: Heart Rate Monitor

Disappointed! Tried connect to Garmin Fenix 8 Pro sapphire using AirPods Pro 3 with no luck. Fenix sees Heartrate cast but will not connect. Hoping this will work in the future. 4 stars because of the pricing model and the ability to test before buying. If it would connect I would buy without reservation. Does display HR from AirPods Pro 3 on iPhone without issue.

This works sometimes. Often have to kill the app multiple times in both my watch and phone before they will sync up and I can actually start broadcasting. Even then, sometimes it will just stop working halfway though my ride. Most of the time once it’s connected it doesn’t send updates at regular intervals there will be periods where my cycling app doesn’t receive a value for several seconds up to several minutes. Recently, they added the ability to record works to apple health. This is REQUIRED now for the app to work. I do not want this app writing workouts to Apple health. My cycling app does that. All this is doing is forcing me to go delete a workout that doesn’t even have accurate data to begin with.

I’ve used this for years, but the 2025 updates (AirPods Pro 3 support and haptic zone alerts) have made it even better. It’s reliable, private and keeps my Apple Watch or air pods at the center of my fitness data. Setup is quick and it has never dropped a connection during a long ride. The customer service is responsive and reliable. I just donated $100 to show my appreciation. There’s not many like this out there. 10/10.