# mmCalc — user reviews

> 6 indexed App Store user reviews of mmCalc by Joe Scotto, rated 4.85/5 from 34 ratings.

- Source: https://appshunter.io/ios/app/mmcalc/id1378536055/reviews
- App overview in markdown: https://appshunter.io/ios/app/mmcalc/id1378536055.md
- Rating breakdown: 5★ 30 · 4★ 3 · 3★ 1 · 2★ 0 · 1★ 0

## Most critical reviews (6 lowest-rated)

### 1/5 — Confused. Pay for less?

*2019-02-07*

The website works perfectly, and so did the free app until I paid to remove the adverts. Then pop up boxes with no selectable fields cripple it’s interaction- the app no longer functions as purposed. Real shame, it’s design from a concept and GUI perspective are fantastic. Please remedy.

### 1/5 — Nothing happens!

*2018-06-09*

Not sure what this app is supposed to do but I input the information and nothing happens, I put in 90mm, f2.8 and the crop sensor at apsc and click.... nothing, no message, no window. I have no idea where I’m suppose to look to see the result. Oh well, in the trash it goes

### 5/5 — Tony

*2022-11-07*

Very useful app accurate easy to use .Brilliant Thanks

### 5/5 — As advertised - no more no less

*2020-06-26, version 1.3*

Works as intended

### 5/5 — Good Program

*2019-12-10, version 1.3*

Well written, easiest way to calculate sensor diagonals relative to the image circle out there.  Kudos to the author.

### 5/5 — Love it!

*2018-10-02, version 1.3*

Really helped me out, definitely worth the download.

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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 2026-06-10.*