iPhone Screenshots


The Pulse Oximeter app measures both Heart Rate and Oxygen Saturation. The app integrates with Apple Health. There's no need for an external device. YOUR PHONE IS ALL YOU NEED.

The Pulse Oximeter app is for use by sports users who are interested in knowing their blood oxygenation level (SpO2) and Heart Rate. The Pulse Oximeter app is NOT INTENDED FOR MEDICAL USE. The Pulse Oximeter app can be used in a wide range of settings, including between exercises, running, hiking, and in relaxation management.

Pulse Oximeter uses your iPhone’s camera to detect your pulse and oxygen levels from your fingertip. Track and record heartbeat and blood oxygen levels. Instant results, easy to use, simple charts to save your progress.

Whether you are training, doing simple exercise, or just monitoring stress levels, download the App today and use your camera's flash to monitor your progress!

Place the tip of your index finger on the iPhone’s camera, and in a couple of seconds your pulse and oxygen levels will be shown. Results are also recorded in a graph.

- Measure pulse and blood oxygen saturation
- Pulse Oximeter range 93-100%
- Record and store history of data
- Real-time PPG graph for immediate accuracy
- Apple HealthKit integration
- Swipe for label selection

1. Start the app
2. Calibrate
3. Cover the flash and camera lens with your fingertip
4. See your results instantly

iPhone cases need to be removed. Does not work on iPad or iPod.


digiDoc Team

What’s New

Version 2.2.9

Some of our trusted users experienced a bug which we should have fixed now. Let us know either way: support@digidoctech.no.
If you enjoy the app, please leave a review in the App Store. Thanks!

Ratings and Reviews

2.7 out of 5
268 Ratings

268 Ratings

AMSoaps ,

O2 is not accurate

I have emphysema, asthma, and pulmonary fibrosis. It was silly of me to think this app was accurate, but I figured if they were charging for it, it might get close as other free apps heart rates were pretty spot on. However this has me satting at 100% even when I’m gasping for air. I wish I could get my money back. I really do. I gave two stars because at least the pulse seems close.

MickeytheMike ,

This is accurate

At first I was like why is my heart rate low like 55 or 58 I’m pretty sure it’s in the 60’s then I checked on other apps and other equipment like actual Oximeters, and blood pressure machines and it’s in the 58, 57 at rest off course, so it’s pretty accurate not exact but it’s a couple numbers off, like maybe 2 on the beats per minute or 2 on oxygen levels, but I don’t see anything wrong with that, all you people can’t appreciate his/her hard work then just don’t leave anything negative, delete it and leave him/her alone, it’s a fine peace of work.

Papateh ,

It depends on you

I see many reviews saying pulse is way off. When I use the app, it is fairly accurate with the doctor’s office. The trick is realizing not to hold too tightly over the lens, this restricts blood flow and reduces the pulse in your finger. That being said, this is not intended to replace your professional equipment. If you have concerns, see your doctor.


digiDoc Technologies AS
32.1 MB

Requires iOS 10.1 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Infrequent/Mild Medical/Treatment Information
Unrestricted Web Access


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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