# Radius Calculator — user reviews

> 7 indexed App Store user reviews of Radius Calculator by MaoWare Corporation, rated 4.80/5 from 63 ratings.

- Source: https://appshunter.io/ios/app/radius-calculator/id453210969/reviews
- App overview in markdown: https://appshunter.io/ios/app/radius-calculator/id453210969.md
- Rating breakdown: 5★ 56 · 4★ 2 · 3★ 3 · 2★ 1 · 1★ 1

## Most critical reviews (7 lowest-rated)

### 1/5 — Inaccurate

*2012-02-22*

This app is inaccurate. I don't know what the general contractor was thinking when he used it to hang a garage door. He needs to check it because it had me off by 8 inches. I had to log on to handy math just to get the right arc length. When you calculate the height being half the span it gives you a central angle of 160.bs. Maybe on Mars but on earth it's 180. Don't waste your money!

### 2/5 — Very, very basic app

*2017-02-05*

There are no settings and no graphical representation - all you get is a table with 2 input fields for width and elevation and it gives you 4 results in your selected units.
Very, very basic app.
The description refers to the calculated "centre angle" being an estimate - but it does not provide a definition or any identification of what they are calling the "centre angle". 
I expected more, even if this were a free app I would still feel disappointed.

### 3/5 — X /2) / (y*2) + (y/2) = R

*2022-07-10*

Not bad but it would be better if you could type in 
Fraction  up to 32s  at least

### 3/5 — Ok app

*2013-03-22*

Would be nice if it would stop defaulting to inches

### 5/5 — Awesome

*2018-09-17*

Awesome app . Best thing since sliced bread!

### 5/5 — Incredibly Useful and Efficient

*2017-10-14*

I do a lot of radius woodwork.  This app saves me from waiting until I get back to my desk to figure out the radius of whatever project I'm producing.
I recommend this to anyone in construction.  It surely has other uses as well for other trades.

### 5/5 — Great Arc App

*2011-08-05*

I am a general contractor and was trying to figure out the radius of the arc over a garage door header, I downloaded the app and had the radius in about one minute. It would of taken me 20 min to figure it out! 1.99 app saved me about $ 12 in labor.

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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.*