BeatLens: Heart Rate & HRV

About

BeatLens turns your iPhone camera into a personal pulse lab. Rest a fingertip over the rear camera and flash, and in about 45 seconds you get your pulse, measured from the tiny color changes in your skin with every heartbeat. No watch, strap or extra hardware needed. One reading tells you what's happening now; repeated readings show what's normal for you. Over about a week BeatLens builds your personal baseline, then compares each new reading with your own usual range, not everyone's. MEASURE - Pulse (heart rate) from your fingertip with the rear camera and flash - Finger-placement guide adapted to your iPhone model's camera layout - Live signal quality, so you know when a reading is clean - If your finger slips, the reading pauses and resumes where it left off - 50+ context tags like after waking or after coffee, plus your own custom tags, so comparisons are fair EVERY READING, IN DETAIL - Your pulse during the reading, as a chart - How it compares with your last 7 days - With Pro: beat-to-beat rhythm charts (Poincaré plot), breathing rhythm and a 30-day comparison LOG YOUR OWN READINGS - Enter values from your own devices: pulse, blood pressure from a cuff, blood oxygen from a fingertip oximeter, temperature and breathing rate - Entered readings are marked with a diamond, kept exactly as typed and never mixed into your camera baseline - See them in History next to your camera readings, and optionally save them to Apple Health UNDERSTAND - History with daily averages you can drag to explore - Insights: weekly changes and recovery today - Apple Health and Apple Watch context: resting heart rate, HRV, sleep, workouts and more APPLE WATCH - Your latest heart rate against your own morning range, at a glance - Check-Ins on your wrist: a short, still snapshot using Apple Watch heart rate - Quick context tags, including your own, synced with your iPhone - Recovery, HRV and 7-day trends, a stand-up test and heart rate recovery after workouts (Pro) - Complications, Smart Stack widgets and Controls BEATLENS PRO - Pulse variability (HRV): RMSSD, SDNN, pNN50 and beat-to-beat intervals - Breathing rate, read from your pulse - Long-term trends across weeks, months and the year - Pulse by context and lifestyle insights, like sleep and HRV - Recovery Sessions: longer 3-minute readings for steadier variability Always free: pulse measurements, signal quality, the pulse chart of each reading, 7 days of history, entered readings and your basic pulse baseline. Available in English, German, Japanese, French, Spanish and Portuguese. PRIVATE BY DESIGN Camera frames are analyzed on your iPhone and never saved. Your data stays on your iPhone and in your own private iCloud. There's no account and no BeatLens server, and you can export or delete everything anytime. SUBSCRIPTION BeatLens Pro is available as an auto-renewing monthly or annual subscription, with a free week for eligible new subscribers. Payment is charged to your Apple Account at confirmation of purchase (or when the free trial ends). The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel it in Settings > Apple Account > Subscriptions. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://appmate.cloud/legal/beatlens IMPORTANT BeatLens is a wellness app, not a medical device. It does not diagnose, treat or prevent any condition. The camera measures pulse only: blood pressure, blood oxygen and temperature appear only when you enter them from your own devices or they come from Apple Health. If you have any health concern, talk to a doctor.