# Beat Watcher > Beat Watcher is an Apple Watch app that alerts you the moment your heart rate goes above or below the BPM thresholds you set. It offers continuous background monitoring, haptic and audio alerts, an optional iPhone companion with Critical Alerts, Bluetooth chest strap support (such as the Polar H10), and saved Alert History on iPhone with local notes, context tags, and user-initiated CSV export. Free to download, with an optional subscription at $12 per year that includes a one month free trial. Beat Watcher is a general wellness app, not a medical device, and does not diagnose, treat, or prevent any condition. ## App - [Beat Watcher on the App Store](https://apps.apple.com/app/apple-store/id1546373421): Apple Watch heart rate threshold alert app. Free to download with an optional $12 per year subscription. - [Beat Watcher home](https://beatwatcher.app/): Overview, features, pricing, and supported devices (Apple Watch Series 3 or newer, watchOS 8+). - [Best Heart Rate Alert Apps for Apple Watch](https://beatwatcher.app/best-heart-rate-alert-app/): An honest comparison of the main Apple Watch heart rate alert apps (Beat Watcher, TachyMon, Cardiac Alarm, RscMe) and how to choose. ## Conditions and use cases - [POTS Heart Rate Monitor](https://beatwatcher.app/pots-heart-rate-monitor/): Real-time high and low heart rate threshold alerts used by many people with POTS (postural orthostatic tachycardia syndrome) for pacing and awareness, now with saved Alert History, local notes, context tags, and CSV export on iPhone. - [ME/CFS and Long COVID Heart Rate Pacing](https://beatwatcher.app/me-cfs-heart-rate/): Comparison of heart rate pacing apps for ME/CFS and Long COVID. Beat Watcher is the Apple Watch option for simple real-time BPM threshold alerts, Background Mode, persistent feedback, optional iPhone alerts, chest strap support, saved Alert History, local notes, context tags, and CSV export. - [Pericarditis Heart Rate](https://beatwatcher.app/pericarditis-heart-rate/): Alerts the moment your heart rate crosses a limit you set, useful when keeping heart rate down during pericarditis recovery. - [AFib Heart Rate](https://beatwatcher.app/afib-heart-rate/): High heart rate threshold alerts for people keeping an eye on their heart rate alongside their doctor's guidance. - [Sleep Heart Rate Monitor](https://beatwatcher.app/sleep-heart-rate-monitor/): Overnight low and high heart rate threshold alerts with optional iPhone Critical Alerts that cut through silent mode. - [Low Heart Rate and Bradycardia Alerts](https://beatwatcher.app/bradycardia-heart-rate/): Custom low heart rate threshold alerts on Apple Watch, including overnight, for people who keep an eye on a low or resting heart rate. - [Stress Heart Rate](https://beatwatcher.app/stress-heart-rate-monitor/): Notice heart rate spikes associated with stress so you can take a breathing break. - [Sauna Heart Rate](https://beatwatcher.app/sauna-heart-rate/): Heart rate alerts during sauna sessions so you know when to step out. - [Pregnancy Heart Rate](https://beatwatcher.app/pregnancy-heart-rate/): Heart rate awareness during pregnancy with a threshold you set. - [Zone 2 Training](https://beatwatcher.app/zone-2-training/): Stay inside your Zone 2 heart rate range during training with high and low alerts. ## Guides - [Background Mode Guide](https://beatwatcher.app/background-mode-guide/): How Beat Watcher keeps monitoring your heart rate continuously when your wrist is lowered or you switch apps. - [Heart Rate Alerts Guide](https://beatwatcher.app/heart-rate-alerts-guide/): How to set up customizable high and low heart rate threshold alerts and review saved alert events later on iPhone. - [Phone Alerts Guide](https://beatwatcher.app/phone-alerts-guide/): How to forward heart rate alerts to your iPhone, including Critical Alerts. ## About - [Terms and Privacy](https://beatwatcher.app/terms): Terms of use and privacy policy. Heart rate and health data are never sold; Beat Watcher is built by Ganotis Holdings, Inc. ## Related app from the same developer - [Simple Stress Watch](https://beatwatcher.app/simple-stress-watch/): A separate free Apple Watch app by Ganotis Holdings that shows your heart rate variability (HRV) as a one-glance recovery meter against your own baseline. No account, no uploads, no analytics, no subscription. A minimal, private alternative to feature-heavy AI stress monitors. - [StressWatch alternative](https://beatwatcher.app/stresswatch-alternative/): How Simple Stress Watch compares to StressWatch (the AI stress monitor) and why some people prefer an app that shows the HRV number instead of interpreting their stress for them. - [Simple stress and HRV apps for Apple Watch](https://beatwatcher.app/simple-stress-apps-apple-watch/): A guide to simple, private stress and HRV apps for Apple Watch, from AI stress monitors to minimal one-number meters. ## Italiano pages (it) - [Monitoraggio della frequenza cardiaca per la fibrillazione atriale su Apple Watch | Beat Watcher](https://beatwatcher.app/it/fibrillazione-atriale-frequenza-cardiaca/) - [Attivare la modalità in background di Beat Watcher su Apple Watch](https://beatwatcher.app/it/guida-modalita-background-beat-watcher/) - [Le migliori app di avvisi per la frequenza cardiaca per Apple Watch (2026) | Beat Watcher](https://beatwatcher.app/it/migliore-app-avvisi-frequenza-cardiaca/) - [App di avviso frequenza cardiaca bassa per Apple Watch | Beat Watcher](https://beatwatcher.app/it/frequenza-cardiaca-bassa-bradicardia/) - [Guida agli avvisi di frequenza cardiaca: soglie alta e bassa | Beat Watcher](https://beatwatcher.app/it/guida-avvisi-frequenza-cardiaca/) - [Beat Watcher: app di avvisi di frequenza cardiaca per Apple Watch](https://beatwatcher.app/it/) - [Pacing della frequenza cardiaca per ME/CFS e Long COVID con Apple Watch | Beat Watcher](https://beatwatcher.app/it/frequenza-cardiaca-me-cfs/) - [Monitor della frequenza cardiaca per la pericardite su Apple Watch | Beat Watcher](https://beatwatcher.app/it/pericardite-monitor-frequenza-cardiaca/) - [Guida agli avvisi su iPhone per Beat Watcher | Avvisi sulla frequenza cardiaca su iPhone](https://beatwatcher.app/it/guida-avvisi-telefono-beat-watcher/) - [Monitor della frequenza cardiaca per POTS su Apple Watch | Beat Watcher](https://beatwatcher.app/it/monitor-frequenza-cardiaca-pots/) - [Frequenza cardiaca durante l’attività fisica in gravidanza | Beat Watcher](https://beatwatcher.app/it/frequenza-cardiaca-gravidanza-esercizio/) - [Frequenza cardiaca in sauna: quando uscire in base ai BPM | Beat Watcher](https://beatwatcher.app/it/frequenza-cardiaca-sauna-battiti/) - [App semplici per lo stress e l’HRV per Apple Watch (gratuite e minimali)](https://beatwatcher.app/it/app-stress-semplici-apple-watch/) - [Simple Stress Watch: misuratore HRV gratuito per Apple Watch](https://beatwatcher.app/it/simple-stress-watch-misuratore-hrv-gratuito/) - [Avvisi di frequenza cardiaca bassa nel sonno con Apple Watch | Beat Watcher](https://beatwatcher.app/it/monitor-frequenza-cardiaca-sonno/) - [Monitor della frequenza cardiaca per stress e ansia per Apple Watch | Beat Watcher](https://beatwatcher.app/it/monitor-frequenza-cardiaca-stress-ansia/) - [Alternativa a StressWatch: app HRV gratuita e più semplice per Apple Watch](https://beatwatcher.app/it/alternativa-stresswatch-app-hrv-semplice/) - [Allenamento in Zona 2 della frequenza cardiaca su Apple Watch | Beat Watcher](https://beatwatcher.app/it/allenamento-zona-2-frequenza-cardiaca/) ## 日本語 pages (ja) - [Apple Watchで心房細動の心拍数モニタリング | Beat Watcher](https://beatwatcher.app/ja/afib-heart-rate/) - [Apple WatchのBeat Watcherでバックグラウンドモードを設定する方法](https://beatwatcher.app/ja/background-mode-guide/) - [Apple Watch向け心拍数アラートアプリのおすすめ(2026年)| Beat Watcher](https://beatwatcher.app/ja/best-heart-rate-alert-app/) - [Apple Watch用の心拍数が低いときのアラートアプリ | Beat Watcher](https://beatwatcher.app/ja/bradycardia-heart-rate/) - [心拍数アラートの設定ガイド: 高い・低いしきい値 | Beat Watcher](https://beatwatcher.app/ja/heart-rate-alerts-guide/) - [Beat Watcher:Apple Watch用の心拍数アラートアプリ](https://beatwatcher.app/ja/) - [ME/CFS・ロングCOVIDの心拍数ペーシングをApple Watchで | Beat Watcher](https://beatwatcher.app/ja/me-cfs-heart-rate/) - [心膜炎の心拍数モニター for Apple Watch | Beat Watcher](https://beatwatcher.app/ja/pericarditis-heart-rate/) - [Beat WatcherのiPhoneアラートガイド | iPhoneで心拍数を通知](https://beatwatcher.app/ja/phone-alerts-guide/) - [POTSのための心拍数モニター Apple Watch対応 | Beat Watcher](https://beatwatcher.app/ja/pots-heart-rate-monitor/) - [妊娠中の運動で心拍数をモニタリング | Beat Watcher](https://beatwatcher.app/ja/pregnancy-heart-rate/) - [サウナと心拍数:BPMで判断する出るタイミング | Beat Watcher](https://beatwatcher.app/ja/sauna-heart-rate/) - [Apple Watch向けのシンプルなストレス・HRVアプリ(無料でミニマル)](https://beatwatcher.app/ja/simple-stress-apps-apple-watch/) - [Simple Stress Watch:Apple Watch用の無料・ミニマルなHRVメーター](https://beatwatcher.app/ja/simple-stress-watch/) - [睡眠中の心拍数が低いときのアラート(Apple Watch)| Beat Watcher](https://beatwatcher.app/ja/sleep-heart-rate-monitor/) - [ストレスと不安の心拍数モニター Apple Watch対応 | Beat Watcher](https://beatwatcher.app/ja/stress-heart-rate-monitor/) - [StressWatchの代替: Apple Watch向けの無料でシンプルなHRVアプリ](https://beatwatcher.app/ja/stresswatch-alternative/) - [Apple Watchでのゾーン2心拍数トレーニング | Beat Watcher](https://beatwatcher.app/ja/zone-2-training/) ## 简体中文 pages (zh-hans) - [用 Apple Watch 监测房颤心率 | Beat Watcher](https://beatwatcher.app/zh-hans/afib-heart-rate/) - [在 Apple Watch 上设置 Beat Watcher 的后台模式](https://beatwatcher.app/zh-hans/background-mode-guide/) - [Apple Watch 最佳心率提醒 App(2026)| Beat Watcher](https://beatwatcher.app/zh-hans/best-heart-rate-alert-app/) - [Apple Watch 心率过低提醒 App | Beat Watcher](https://beatwatcher.app/zh-hans/bradycardia-heart-rate/) - [心率提醒设置指南:心率过高和过低阈值 | Beat Watcher](https://beatwatcher.app/zh-hans/heart-rate-alerts-guide/) - [Beat Watcher:Apple Watch 心率提醒 App](https://beatwatcher.app/zh-hans/) - [在 Apple Watch 上管理 ME/CFS 与新冠长期症状的心率配速 | Beat Watcher](https://beatwatcher.app/zh-hans/me-cfs-heart-rate/) - [Apple Watch 心包炎心率监测 | Beat Watcher](https://beatwatcher.app/zh-hans/pericarditis-heart-rate/) - [Beat Watcher 的 iPhone 提醒指南 | 在 iPhone 上接收心率提醒](https://beatwatcher.app/zh-hans/phone-alerts-guide/) - [Apple Watch 上的 POTS 心率监测 | Beat Watcher](https://beatwatcher.app/zh-hans/pots-heart-rate-monitor/) - [孕期运动时的心率监测 | Beat Watcher](https://beatwatcher.app/zh-hans/pregnancy-heart-rate/) - [桑拿心率:根据 BPM 判断何时该出来 | Beat Watcher](https://beatwatcher.app/zh-hans/sauna-heart-rate/) - [Apple Watch 简单压力与 HRV App(免费且极简)](https://beatwatcher.app/zh-hans/simple-stress-apps-apple-watch/) - [Simple Stress Watch:Apple Watch 免费 HRV 测量工具](https://beatwatcher.app/zh-hans/simple-stress-watch/) - [Apple Watch 睡眠时心率过低提醒 | Beat Watcher](https://beatwatcher.app/zh-hans/sleep-heart-rate-monitor/) - [Apple Watch 压力与焦虑心率监测 | Beat Watcher](https://beatwatcher.app/zh-hans/stress-heart-rate-monitor/) - [StressWatch 替代方案:适用于 Apple Watch 的免费、更简单 HRV App](https://beatwatcher.app/zh-hans/stresswatch-alternative/) - [在 Apple Watch 上进行第 2 区心率训练 | Beat Watcher](https://beatwatcher.app/zh-hans/zone-2-training/) ## 한국어 pages (ko) - [Beat Watcher: Apple Watch용 심박수 알림 앱](https://beatwatcher.app/ko/) - [Apple Watch 심방세동 심박수 모니터링 | Beat Watcher](https://beatwatcher.app/ko/afib-heart-rate/) - [Apple Watch용 Beat Watcher 백그라운드 모드 가이드](https://beatwatcher.app/ko/background-mode-guide/) - [Apple Watch 심박수 알림 앱 추천 (2026) | Beat Watcher](https://beatwatcher.app/ko/best-heart-rate-alert-app/) - [Apple Watch용 낮은 심박수 알림 앱 | Beat Watcher](https://beatwatcher.app/ko/bradycardia-heart-rate/) - [심박수 알림 가이드: 상한 및 하한 임계값 | Beat Watcher](https://beatwatcher.app/ko/heart-rate-alerts-guide/) - [Apple Watch로 ME/CFS 및 롱 COVID 심박수 페이싱 | Beat Watcher](https://beatwatcher.app/ko/me-cfs-heart-rate/) - [Apple Watch 심낭염 심박수 모니터 | Beat Watcher](https://beatwatcher.app/ko/pericarditis-heart-rate/) - [Beat Watcher iPhone 알림 가이드 | iPhone 심박수 알림](https://beatwatcher.app/ko/phone-alerts-guide/) - [Apple Watch용 POTS 심박수 모니터 | Beat Watcher](https://beatwatcher.app/ko/pots-heart-rate-monitor/) - [임신 중 운동 심박수 모니터링 | Beat Watcher](https://beatwatcher.app/ko/pregnancy-heart-rate/) - [사우나 심박수: BPM 기준으로 나올 때 정하기 | Beat Watcher](https://beatwatcher.app/ko/sauna-heart-rate/) - [Apple Watch용 심플한 스트레스 및 HRV 앱 (무료, 미니멀)](https://beatwatcher.app/ko/simple-stress-apps-apple-watch/) - [Simple Stress Watch: Apple Watch용 무료 미니멀 HRV 미터](https://beatwatcher.app/ko/simple-stress-watch/) - [Apple Watch 수면 중 낮은 심박수 알림 | Beat Watcher](https://beatwatcher.app/ko/sleep-heart-rate-monitor/) - [Apple Watch용 스트레스 및 불안 심박수 모니터 | Beat Watcher](https://beatwatcher.app/ko/stress-heart-rate-monitor/) - [StressWatch 대안: Apple Watch용 무료 심플 HRV 앱](https://beatwatcher.app/ko/stresswatch-alternative/) - [Apple Watch로 하는 존 2 심박수 트레이닝 | Beat Watcher](https://beatwatcher.app/ko/zone-2-training/)