HeartBLE: Skip the chest strap. Broadcast your Apple Watch heart rate directly to Mac, PC, iPad, Zwift, Rouvy, MyWhoosh and any trainer — no iPhone in the middle. The only app in the niche that uses standard HR BLE protocol for true direct connection. No intermediate phone, no battery drain. Just enable Bluetooth + Health, pair once, tap Start. Reliable throughout your workout. Built by a cyclist for indoor cyclists, rowers & runners who hate chest straps and complicated phone setups.