Track and trend your biometric information with the Masimo Personal Health App to guide changes in diet, exercise, stress reduction, and sleep to improve your health and wellness, as well as strength and conditioning regimens to improve your athletic performance.

Key Features:

- View your measurements in real time
- Track and trend your measurement history
- Share your data through email and social media
- Automatically store your data in Apple Health
- Create multiple user profiles
- Set your low and high thresholds for each parameter

The Masimo Personal Health App is only for use with the MightySat fingertip pulse oximeter or the iSpO2 pulse oximeter. This App (together with the MightySat fingertip pulse oximeter or the iSpO2 pulse oximeter) allows you to non-invasively measure blood oxygen saturation, pulse rate, and perfusion index. MightySat provides additional parameters which include respiration rate and pleth variability index. The compatible Masimo devices are available for sale in select countries only. Visit us at (in the United States) or at (outside the United States) to find out how you may purchase the MightySat or iSpO2 devices.

MightySat and iSpO2 use Signal Extraction Technology (SET®) to provide accurate oxygen saturation and pulse rate measurements when other pulse oximeters fail, such as during movement and low blood flow.


Oxygen Saturation (SpO2) - the oxygen level in the arterial blood to indicate changes due to heart or lung function, oxygen use by your body, or altitude

Pulse Rate (PR) - the number of pulses per minute to indicate overall fitness as well as exertion levels at a particular moment in time

Perfusion Index (PI) - the strength of blood flow to your finger to indicate changes in blood circulation

Respiration Rate (RRp) - the number of breaths you are taking each minute to indicate how well your heart and lungs are functioning as well as how quickly you can recover after exercise.

Pleth Variability Index (PVI) - the variation in perfusion index over your breathing cycle. Changes in PVI may indicate changes in hydration, breathing effort, perfusion, or other factors. ¹ ² ³ *

* It is suggested to measure PVI in the same body position, remaining still and without talking, at the same breathing rate and depth of breathing, until you see a high confidence PVI value (displayed value is bright, not dim). An increase in PVI may indicate a decreased level of hydration, increased breathing effort, or other factors. A decrease in PVI may indicate an increased level of hydration, decreased breathing effort, or other factors. Multiple factors other than hydration and breathing effort can affect PVI, including breathing rate, depth of breathing, body position, body movement, vascular tone, blood flow to the finger (perfusion index), normal variation within a short-term monitoring session, waveform shape changes, and/or cardiovascular abnormalities.

¹ Schooljans A et al. Acta Anaesth Belg. 2010 (61), 147-150.
² Mathews D et al. ASA 2014. A1124.
³ Perel A. Anesth Analg. 2014 Dec;119(6):1288-92.

What's New

Version 2.3.0

* Removed Threshold and Heart Rate Recovery features for the Japan market.

Ratings and Reviews

Great display, but missing email option

Loves GSD's

Excellent display of O2 levels, pulse rate and pleth wave form. Would be very useful to have info on the meaning of the various wave form shapes, since they reflect cardiac action. Presumably this lack reflects the warning that this app is not for medical use, which would involve legal liability considerations. This is unfortunate, since this is medical data like it or not.
Also, the app does not provide for emailing the data, though the iPSO2 manual states that this can be done on the Options page. There is an error message if you click on Email History that Mail has not been configured. If this refers to the iPad Mail app, there's no provision that I can find to configure it other than for regular email use, which I use all the time. Some clarification would be helpful here.

Initial review


Used this in my aircraft and it works well. The pulse ox itself I'd give 5 stars. The app on the other hand needs a little work but should get there. As for the apps features, the history graph page seems useless. You can't navigate around to see the data from my flight later the next day. It just doesn't seem user friendly. It would also be cool if it logged the data with your altitude for reference wether hiking, flying or what ever your doing at high elevation.

I e-mailed the data to myself and you can view it that way but its not in a nice graph form and just the data. For trending seeing the graphs would be better especially if altitude was graphed with it.

Good start, but more data helpful


This device plus the app do what it is billed to do. The ability to acquire cumulative data overnight is especially attractive. The hardware is a bit pricey though, but more reflects the focus of Masimo. It is not a toy. I would wonder why the app doesn’t deliver more from the signals. Why not heart rate variability since it appears to have such a good signal reception? I would hope future additional value from upgrades in the app. I think the sports uses are potential great.


65.9 MB
Health & Fitness
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Italian, Japanese, Simplified Chinese, Spanish
Age Rating
Rated 4+
© 2018 All rights reserved. All trademarks and/or copyrights are properties of their respective owners.


  • Family Sharing

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

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