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After that stuck on bt device connection screen.
Uninstalled.

This app records SpO2 and pulse rate during sleep using a Bluetooth fingertip pulse oximeter. It generates reports for doctors to analyze sleep conditions and make diagnoses. The app does not provide medical advice.
3.1.7
April 11, 2024
- Adjust the operating interface
6Months unlimited report
View Tracker SpO2 & Pulse rate is used to record your SpO2 and pulse rate while you sleep, using a compatible Bluetooth fingertip pulse oximeter. The app then generates reports that can be shared with your doctor for analysis and diagnosis of sleep conditions.
No, View Tracker SpO2 & Pulse rate explicitly states that it does not provide medical advice, diagnosis, or treatment. Users should always seek a doctor's advice in addition to using the app and before making any medical decisions.
The app works by pairing with Leadtek's Bluetooth fingertip pulse oximeter. While you sleep, the oximeter, connected to the app, continuously records your SpO2 and pulse rate data.
The app generates sleep oximetry reports that include analysis of your sleeping condition with parameters such as lowest/average SpO2 and pulse rate, ODI 3%, ODI 4%, and CT 90% sleep SpO2 concentration. These reports help doctors understand your SpO2 and pulse trend data.
View Tracker SpO2 & Pulse rate offers a monthly subscription plan for unlimited report downloads. Pricing options include $2.99/month, $6.99/6 months, or $10.99/12 months. There is also a 10-time report download plan for $0.99.
Your subscription will be charged to your iTunes Account upon confirmation. Auto-renewal can be managed or turned off in your Apple ID Account Settings at least 24 hours before the end of your current subscription period.
View Tracker SpO2 & Pulse rate is supported on iPhone and iPod devices. It requires a compatible Bluetooth fingertip pulse oximeter to function.
The latest version of View Tracker SpO2 & Pulse rate, 3.1.7, was last updated on April 11, 2024. The app was initially released on April 28, 2021.