HeartBetter: Stay in Range

HeartBetter is a focused Apple Watch companion for heart-rate range awareness during activities. On first launch, watchOS asks for Health access and HeartBetter offers a short optional tour. Set your preferred heart-rate range, choose an activity type, and start a session directly from the watch. During the session, the app reads heart-rate data through HealthKit and gives simple cues when you are below, inside, or above your selected range. You can enable vibration cues, repeated feedback, session time, workout saving, and Water Lock from the watch. Health data stays on Apple Watch and Apple Health. HeartBetter has no accounts, ads, analytics, tracking, developer servers, or third-party SDKs. HeartBetter is for fitness guidance only. It is not medical advice, diagnosis, emergency monitoring, or treatment.