# Bolt Hole Circle Calculator — user reviews

> 6 indexed App Store user reviews of Bolt Hole Circle Calculator by ITAMCO, rated 4.29/5 from 24 ratings.

- Source: https://appshunter.io/ios/app/bolt-hole-circle-calculator/id587068320/reviews
- App overview in markdown: https://appshunter.io/ios/app/bolt-hole-circle-calculator/id587068320.md
- Rating breakdown: 5★ 18 · 4★ 2 · 3★ 0 · 2★ 1 · 1★ 3

## Most critical reviews (6 lowest-rated)

### 1/5 — Used to work great......

*2018-08-30, version 1.1.4*

When I first got this app it worked great but for the last 6 months or so and through a second phone it doesn’t. Upon entering your number of holes and radius after hitting calculate the app just closes.

### 1/5 — Doesn't make sense

*2014-03-04, version 1.1.0*

It doesn't make sense that you would make a bolthole calculator that doesn't allow you to put decimal points if we lived in a nominal world where nothing was in half degrees or quarter inches or whatever we see fit your bolthole pattern it would be great but that's not the world especially the world of machinist so sorry you need to work on your app tremendously

### 1/5 — Just aweful

*2013-01-16, version 1.0.0*

I've been a machinist for 21 year and this app is just awful. It would be useable if you could actually fill in all the fields but as it I the angle field is unusable and just picks random offsets. Deleted immediately.

### 2/5 — Not working

*2018-02-23, version 1.1.4*

It did work on iOS 11 until update now it leaves keyboard on screen, which hides info
They finally fixed the app. Works well now. Be nice if they would bring all their other paid apps up to date.

**Developer response:** Thank you for bringing this to our attention. We have submitted a new version to correct this issue and it should hit the app store as soon as it is reviewed by Apple.

### 5/5 — Bolt hole calculator

*2014-11-13, version 1.1.1*

Very simple. Works great.

### 5/5 — Great App!

*2013-03-12, version 1.0.0*

This is a great app for calculating bolt hole circles on the fly! Automatically calculates the angle based off how many bolt holes and radius. Highly Recommend! Must Have!

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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.*