Heart Rate, Oxygen Monitor
Not in any tracked top chart right now.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperAndy Hollings
CategoryHealth & Fitness
Price1.99 USD
Released
Rating★ 1.0 (1)
Version1.2
Age rating12+
First seen by us
26 Sep 2026
Rating
1.0 ★
1 ratings
Measured
Heart Rate, Oxygen Monitor on the App Store
App details
App ID
6736942805
Publisher
Andy Hollings
Minimum OS
iOS 13.0+
Content rating
12+
Languages
1
EN
Size
2 MB
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
1.0 ★
1 ratings
Measured
Ratings
1
Measured
About Heart Rate, Oxygen Monitor
Heart Rate and Oxygen Monitor
Take control of your health with Heart Rate & Oxygen Monitor, a powerful heart rate and oxygen (O2) monitoring app designed to provide real-time insights into your cardiovascular well-being—all from the convenience of your wrist. Whether you're tracking your fitness, managing stress levels, or keeping an eye on your overall health, First Responder is your go-to companion for understanding your body's most vital signs.
Key Features:
1. Heart Rate Monitoring (HR)
Track your heart rate in real-time with heart rate monitoring. View accurate heart rate data on your Apple Watch and stay informed about your heart health, whether you're exercising or simply going about your day.
2. Oxygen Saturation Monitoring (O2)
Provides real-time blood oxygen (SpO2) level monitoring, displayed on the same screen as your heart rate data. Keep an eye on your oxygen levels to better understand your body's performance and detect potential health issues early.
3. Dual-Screen Health Insights
Our simple and intuitive user interface allows you to monitor both your heart rate and oxygen saturation at the same time. Visual feedback, with easy-to-read metrics, ensures you can quickly interpret your body's vital signs.
4. No Data Tracking or Sharing
At Sax Compute Ltd, privacy is our top priority. Rest assured that no data is collected, shared, or tracked. Sax Compute Ltd does not process or store any personal or health data. Your information stays on your device, completely private. You can use the app on anyone’s wrist without affecting their personal health data.
5. Charity Donation
We believe in making a difference beyond just health. 30% of the net profit from the sale of First Responder goes directly to the UK Air Ambulance charity. Every purchase helps fund life-saving services across the UK.
6. Fast Loading and User-Friendly
We know that time is precious, especially when monitoring your health. That's why Heart Rate & Oxygen Monitor is optimized for fast loading, ensuring that you can get to your vital health data in no time, without delays.
7. One-Time Purchase, No Subscriptions
Enjoy First Responder with a simple, one-time purchase. No subscriptions, no recurring fees - just a straightforward app designed to help you monitor your health and support a good cause.
Why Choose First Responder?
No tracking or data collection: Unlike many apps, we don’t track your usage or store any of your personal data. Your health information is yours, and it stays on your device.
Supporting a cause: With every purchase, you're contributing to a charity that saves lives daily. Your support helps the UK Air Ambulance service continue to operate, providing
emergency medical services to those in need.
Real-time insights: First Responder delivers real-time monitoring for two of your body's most crucial indicators—heart rate and oxygen saturation—helping you stay informed about your health at all times.
Perfect for:
Athletes who need quick, real-
Take control of your health with Heart Rate & Oxygen Monitor, a powerful heart rate and oxygen (O2) monitoring app designed to provide real-time insights into your cardiovascular well-being—all from the convenience of your wrist. Whether you're tracking your fitness, managing stress levels, or keeping an eye on your overall health, First Responder is your go-to companion for understanding your body's most vital signs.
Key Features:
1. Heart Rate Monitoring (HR)
Track your heart rate in real-time with heart rate monitoring. View accurate heart rate data on your Apple Watch and stay informed about your heart health, whether you're exercising or simply going about your day.
2. Oxygen Saturation Monitoring (O2)
Provides real-time blood oxygen (SpO2) level monitoring, displayed on the same screen as your heart rate data. Keep an eye on your oxygen levels to better understand your body's performance and detect potential health issues early.
3. Dual-Screen Health Insights
Our simple and intuitive user interface allows you to monitor both your heart rate and oxygen saturation at the same time. Visual feedback, with easy-to-read metrics, ensures you can quickly interpret your body's vital signs.
4. No Data Tracking or Sharing
At Sax Compute Ltd, privacy is our top priority. Rest assured that no data is collected, shared, or tracked. Sax Compute Ltd does not process or store any personal or health data. Your information stays on your device, completely private. You can use the app on anyone’s wrist without affecting their personal health data.
5. Charity Donation
We believe in making a difference beyond just health. 30% of the net profit from the sale of First Responder goes directly to the UK Air Ambulance charity. Every purchase helps fund life-saving services across the UK.
6. Fast Loading and User-Friendly
We know that time is precious, especially when monitoring your health. That's why Heart Rate & Oxygen Monitor is optimized for fast loading, ensuring that you can get to your vital health data in no time, without delays.
7. One-Time Purchase, No Subscriptions
Enjoy First Responder with a simple, one-time purchase. No subscriptions, no recurring fees - just a straightforward app designed to help you monitor your health and support a good cause.
Why Choose First Responder?
No tracking or data collection: Unlike many apps, we don’t track your usage or store any of your personal data. Your health information is yours, and it stays on your device.
Supporting a cause: With every purchase, you're contributing to a charity that saves lives daily. Your support helps the UK Air Ambulance service continue to operate, providing
emergency medical services to those in need.
Real-time insights: First Responder delivers real-time monitoring for two of your body's most crucial indicators—heart rate and oxygen saturation—helping you stay informed about your health at all times.
Perfect for:
Athletes who need quick, real-
Latest updates
1.2
This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
Product Alignment and Update to splash screen