CNC Machinist Calculator Pro

Name: CNC Machinist Calculator Pro
Rating: 4.7 (669 reviews)
Author: Shane Anderson

by Shane Anderson

iPhone

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: $14.99

Categories and search queries

Official categories

Productivity
Utilities

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Family Sharing	Yes	Unknown	App Store	Store published

Screens

No screenshots collected yet.

Pricing & paywalls

App Store

Price: $14.99

Last verified 31 Jul 2026

Ratings & reviews

App Store

4.7 669 ratings · App Store

5/5Super useful for machining
I use this app for turning and milling. It’s great for computing speeds and also for referencing items. Aside from calculations there is a lot of information contained in this app if you know where to look for it. Wish it had Involute gear and rotating table calculations maybe in some future release. Definitely worth the price, great to have all this specialized information in your pocket for those times you are at the machining table and don’t feel like pulling out the big books!

Big Loui · 31 Jul 2026
2/5Button presses are abysmal
There are quite a few good utilities here though the UI has one major flaw and several areas that need improvement. The major flaw is that it takes multiple presses on the buttons for data entry. A friend recommended the app to me but warned me of this problem. I didn’t realize how serious it was. Also in some case the button location is not correct so one has to press slightly above (or below) the location of the button to get the correct entry. Really, THIS NEEDS TO GET FIXED!! This app is not worth the money until this problem is resolved! No other app I have ever used has a basic data entry problem like this, please fix it. The app would get four stars if this problem was fixed. I tend not to use it because of this. The other problems are order-of-event issues with the UI, but they pale in comparison the the button entry issue.

ojoazul · 31 Jul 2026
5/5Great App
I’ve used this app daily since I purchased it. It has worked flawlessly. All the issues mentioned in older reviews have been corrected. The developer seems to one of the rare ones that actually cares about his product. I would like to see the addition of a drill point length calculator. Just a simple version where you can enter drill diameter and point angle, and it will give you the point length. If you are a machinist or manufacturing engineer this is a handy app.

Rod Ferro · 31 Jul 2026
5/5Very good, but could be improved in some areas
Very good so far I have used it for both milling and lace but I could not find what I need in the grinding calc. I would like to see a calc for cylindrical center grinders. I tried using the surface grinding calc to approximate the wheel pressure. Or at least a button to switch between surface grinding and cylindrical grinding. I hope to see this improvement. Thanks.

Rc26204 · 31 Jul 2026
5/5Great App!!!
I love this app, it has a ton of great features and information. I just noticed the ‘brain check’ feature which is awesome, i just wish the timer was optional. I like looking at the information, and i usually know the right answer, i’m just not that fast of a reader so the timer usually runs out before i have time to answer it. that’s my only complaint so far haha, again amazing app!

michaelf1988 · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

1
10
Added "Lathe Taper" feature for exporting corner rounding g-code for internal & external chamfers, taper, & radii with tool nose compensation. Also added button linking to the online forum.
11
Fixed Bolt Circle Calculator. Zero degrees now starts at 3 o'clock and the positive direction is now counter clockwise (looking down the Axis normal). Also, added National Pipe Threads to the Thread data section
12
Now you can easily convert inch thread data to metric & metric data to inch in the "Thread Data" section. Also flattened some bugs
13
* Added Material Weight Calculator * Added Tool wear graphics and info * Added Material element & machinability data * Improved button presses * Implemented Cutting speed data into Turning & milling sections
14
Redesigned the Milling Calculator page. Added thread milling calculations Added circle milling calculations Added mill cut time calculation Added Metal removal rate calculation Added a slider to adjust feed per tooth in the milling cutting speed calculation Added option to select PCD tool when milling soft nonferrous material Added socket head set screw counter-bore dimensions Added surface area calculation to Material weights section Added "Brain Check" (Machinist Knowledge Test)
15
Improved load time and button response in "Mill Calc" section
16
Added Spanish translations Added option to use icons on the category buttons
17
Added Scientific Calculator Functions Added Thermal Expansion Calculator Added Grinding calculations Added max RPM to milling speed & feed rate calculator Changed milling feed rate to automatically adjust based on endmill diameter Added inch/metric button within settings screen
18
Added Acme thread data, STI Thread data for Helicoils, and a max RPM field to the effective diameter calculation
19 · 5 Oct 2024
Bug Fixes
3
Speed Improvements
4
Added Triangle solver, Added help menus, Added settings menu, Added sounds, Added mute option, Added Copy from calculator option (long press), Added wish list.
5
Huge update. New look. Added calculators. Added converters. Improved GD&T. New Keyboard. etc...
6
Improved m-code & g-code list Added radial chip thinning calculator Added cusp height calculator Added CNC keyway broach calculator & much more
7
New SFM calculator New Drilling Calculator New font Much more
8
Added thread over wires calculations. Added Thread data for both inch & metric 60° threads. Added thread calculator for metric threads. Improved thread calculator for inch threads. Added stellite & 2205 materials
9
Bug fixes on thread data screen

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Availability by market

Data quality & evidence

Page completeness: Live store listing
Last verified: 31 Jul 2026
Sources: App Store

Independent summary has not been published yet.
Screenshots: not yet collected

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GET /api/v3/apps/1037668281

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