# MAP: mean arterial pressure — user reviews

> 5 indexed App Store user reviews of MAP by Keiji Matsui, rated 3.40/5 from 5 ratings.

- Source: https://appshunter.io/ios/app/map-mean-arterial-pressure/id1321381450/reviews
- App overview in markdown: https://appshunter.io/ios/app/map-mean-arterial-pressure/id1321381450.md
- Rating breakdown: 5★ 3 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 2

## Most critical reviews (5 lowest-rated)

### 1/5 — Incorrect

*2020-02-09*

The results are incorrect. Way low for what it should be.

### 1/5 — Doesn’t do anything

*2018-10-12*

There is no information about how this work. The app either on the Apple Watch or in the iPhone don’t show anything to calculate the blood pressure.

### 5/5 — A skeptic review

*2021-10-18*

So I was skeptic that it works based on the reviews. The bad reviews boil down to operator error and not understanding the formulas. So I downloaded and tested the app to check validity. 

The formulas I used were:

Pulse pressure (PP) = SBP - DBP
MAP = DBP - 1/3PP

If you do the math on various blood pressures the math checks out and works as expected. The app does the same rounding a person would by hand of .5 goes up and .4 and below stays the same. Don’t believe the bad reviews from a lack of understanding the actual math equations to get these numbers. If you don’t believe me try for yourself. I mean the app is free. See for yourself. 

(Disclosure: I am not financially or benefiting in any form from my positive review. Just an ems guy who was looking for a calculator to do the math for me. Saw some bad reviews, and tested it myself to see if it was a trash app or not. )

Hoping this review helps the next guy looking for a MAP calculator.

### 5/5 — Finally!!

*2019-08-25*

Finally what we were looking for in EMS!!

### 5/5 — Does exactly what it says!

*2019-07-03*

Quickly converts systolic and diastolic blood pressure values to a mean arterial pressure as advertised. Not sure why other reviewers sound confused as to how it works... probably operator error.

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*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 2026-06-01.*