# BloodOxygenMonitor — blood oxygen monitoring > blood oxygen monitoring (iPhone/iPad app by 智敏 焦.) - Source: https://appshunter.io/ios/app/bloodoxygenmonitor/id6756411122 (this page in markdown: same URL + `.md`) - Developer: [智敏 焦](https://appshunter.io/developer/1806339985) - Category: Health & Fitness, Utilities - Price: Free with in-app purchases (on sale, was $0.99) - Age rating: 4+ - Requires: iOS 18.5 · 49 MB - Languages: American English, Afrikaans, Albanian, Amharic, Arabic, Armenian, Assamese, Azerbaijani, Basque, Belarusian and 103 more - Released: 2025-12-11 - Data updated: 2026-08-21 - User reviews in markdown: https://appshunter.io/ios/app/bloodoxygenmonitor/id6756411122/reviews.md ## What is BloodOxygenMonitor? Oxygen Saturation Monitoring Alerts – Your Personal Health Guardian Your Apple Watch continuously monitors your oxygen saturation levels. When your blood oxygen drops below the threshold you’ve set, it delivers immediate vibration alerts — especially useful during sleep in high-altitude or low-oxygen environments. This helps you stay aware of your respiratory health at a glance. Core Features • Real-time Oxygen Monitoring Leveraging the blood oxygen sensor on Apple Watch Series 6 or later, your device continuously tracks your oxygen saturation for accurate and reliable health insights. • Smart Alert System When your oxygen saturation falls below your preset threshold, it triggers a strong vibration alert — ensuring you’re immediately aware and can take prompt action. • Historical Record Management Each low-oxygen alert is fully logged with timestamp, value, and severity level — helping you track trends over time and providing valuable reference data for medical consultations. • Cross-Platform Sync Data from your iPhone and Apple Watch syncs seamlessly. All alerts, logs, and analytics are instantly accessible on your iPhone app for comprehensive review. iPhone App Highlights • In-depth Data Analytics Detailed statistical breakdowns of your oxygen levels — including trends, averages, and anomalies. • Flexible Settings Customize alert thresholds and monitoring parameters to suit your health profile — from sleep patterns to activity levels. Apple Watch App Highlights • Clean & Intuitive Interface Designed for optimal use on your watch face — easy navigation, minimal taps. • One-Tap Control Quickly start or stop monitoring with one tap — no fuss, no delay. • Immediate Vibration Alerts + Sound Options Strong vibration alerts for low oxygen — you can also choose to enable a gentle chime or tone as a secondary alert. • Real-time Status Display See your most recent blood oxygen reading and monitoring status — instantly, whenever you want. Privacy & Security Local Data Storage Only All health data is stored on your device by default – it never goes to a third‑party server. Optional iCloud Backup You decide whether to back up the data to iCloud. No cloud sync is performed unless you enable it. Full Control You can delete the app and all associated health data at any time – you own your information. Transparent Permission Management The app only requests essential permissions: HealthKit access for health data and workout status to enable sleep monitoring – nothing else. Medical Disclaimer This app is for health monitoring and alerting purposes only. It does not provide medical diagnosis or treatment. The data it provides is for informational and general health awareness — never a substitute for professional medical advice. If you have any health concerns, please consult a licensed healthcare provider. System Requirements • iPhone: iOS 15.0 or later • Apple Watch: watchOS 8.0 or later • Device: This app requires an Apple Watch with Blood Oxygen sensor (Series 6 or later). Blood oxygen data is read from HealthKit as measured by Apple Watch's built-in sensor. This app does not perform independent blood oxygen measurements. Ideal For • Anyone concerned about respiratory health • Individuals with sleep apnea or breathing issues • Hikers, trekkers, and travelers to high altitudes • Patients managing chronic conditions requiring oxygen monitoring • Health-conscious users seeking proactive, preventive care Download Now — Begin Your Smart Health Monitoring Journey Today! — Note: This application is not a medical device and does not replace professional healthcare. All data collected is for personal health awareness — always consult a physician if you have any concerns about your condition or symptoms. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.apple.com/legal/privacy/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Yearly | $4.99 | per year | | Monthly | $0.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime | $9.99 | one-time | ## Version history (last 5 releases) ### 1.5.1 — 2026-05-25 Added improved iOS and watchOS widgets with altitude and barometric pressure trends, clearer chart labels, better localization, and more reliable Apple Watch widget data updates. ### 1.5.0 — 2026-05-20 ## BloodOxygenMonitor - Release Notes ### This version fixes an issue where the app would freeze when launching on watchOS. ### New Features **1. Altitude Monitoring** - Real-time altitude estimation based on iOS device barometer (CMAltimeter) - Automatic detection of barometric sensor availability - Supports both relative and absolute altitude modes - Displays barometric pressure values (kPa/hPa) alongside altitude **2. Respiratory Rate Data** - Fetches respiratory rate data (breaths per minute) from HealthKit - Breathing rate classification: low, normal, elevated, high - Sparkline chart showing trend of last 14 respiratory rate samples - Automatic sync of sleep-related respiratory data **3. Health Analysis Dashboard** - Correlation analysis between altitude and blood oxygen levels - Expected SpO2 range adjustment based on current altitude - Comprehensive health assessment combining SpO2, altitude, and respiratory rate ### Improvements - New Health Analysis view integrating SpO2, altitude, and respiratory rate data - Enhanced permission flow with barometer and respiratory rate access requests --- *Note: Respiratory rate data on Apple Watch is recorded only during Sleep Focus mode. Data is for reference only and not intended for medical diagnosis.* ### 1.4.3 — 2026-05-11 ## BloodOxygenMonitor - Release Notes ### New Features **1. Altitude Monitoring** - Real-time altitude estimation based on iOS device barometer (CMAltimeter) - Automatic detection of barometric sensor availability - Supports both relative and absolute altitude modes - Displays barometric pressure values (kPa/hPa) alongside altitude **2. Respiratory Rate Data** - Fetches respiratory rate data (breaths per minute) from HealthKit - Breathing rate classification: low, normal, elevated, high - Sparkline chart showing trend of last 14 respiratory rate samples - Automatic sync of sleep-related respiratory data **3. Health Analysis Dashboard** - Correlation analysis between altitude and blood oxygen levels - Expected SpO2 range adjustment based on current altitude - Comprehensive health assessment combining SpO2, altitude, and respiratory rate ### Improvements - New Health Analysis view integrating SpO2, altitude, and respiratory rate data - Enhanced permission flow with barometer and respiratory rate access requests --- *Note: Respiratory rate data on Apple Watch is recorded only during Sleep Focus mode. Data is for reference only and not intended for medical diagnosis.* ### 1.4.2 — 2026-03-31 New in this version for iOS: • Added trend statistics to help you monitor long-term data. • Introduced data export capabilities. • Added detailed sleep statistics reports. • Fixed miscellaneous bugs and improved overall app stability. ### 1.4.1 — 2026-03-02 Some bugs have been fixed. ## Apps similar to BloodOxygenMonitor | App | Rating | Price | Category | | --- | --- | --- | --- | | [Internal Family: Parts Journal](https://appshunter.io/ios/app/internal-family-parts-journal/id6754350754) | 3.9 (7) | Free | Health & Fitness | | [Replex: Workout Tracker](https://appshunter.io/ios/app/replex-workout-tracker/id6476805884) | — | Free | Health & Fitness | | [Easy Daily Step Counter](https://appshunter.io/ios/app/easy-daily-step-counter/id6756390186) | — | $0.99 | Health & Fitness | | [Intermittent Fasting: Crush](https://appshunter.io/ios/app/intermittent-fasting-crush/id6755090854) | — | Free | Health & Fitness | | [Time Walk - Activity Tracker](https://appshunter.io/ios/app/time-walk-activity-tracker/id6756705576) | — | Free | Health & Fitness | | [EasyBreathHold](https://appshunter.io/ios/app/easybreathhold/id6754877619) | — | Free | Health & Fitness | ## More apps by 智敏 焦 - [BillNote](https://appshunter.io/ios/app/billnote/id6748434810) - [Rosettica](https://appshunter.io/ios/app/rosettica/id6759609293) All apps by 智敏 焦: https://appshunter.io/developer/1806339985 ## Related topics [blood oxygen monitor](https://appshunter.io/ios/topics/blood-oxygen-monitor) · [blood oxygen monitoring](https://appshunter.io/ios/topics/blood-oxygen-monitoring) · [blood oxygen free](https://appshunter.io/ios/topics/blood-oxygen-free) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*