About Slide Rule

Slide Rule is a Productivity app by Masayuki Akamatsu. This application is a slide rule simulator. The slide rule (a.

is Slide Rule free? Slide Rule costs $0.99

Slide Rule Screenshots

Download and install APK on Android

How to setup Slide Rule APK:

APK (Android Package Kit) files are the raw files of an Android app. Learn how to install slide-rule.apk file on your phone in 4 Simple Steps:

Download the slide-rule.apk to your device using any of the download mirrors.
Allow 3rd Party (non playstore) apps on your device: Go to Menu » Settings » Security » . Click "Unknown Sources". You will be prompted to allow your browser or file manager to install APKs.
Locate the slide-rule.apk file and click to Install: Read all on-screen prompts and click "Yes" or "No" accordingly.
After installation, the Slide Rule app will appear on the home screen of your device.

Is Slide Rule APK Safe?

Yes. We provide some of the safest Apk download mirrors for getting the Slide Rule apk.

Slide Rule v2.0.0 APK Download Mirrors

On iTunes: $0.99 On iTunes

Mirrors: Download for Android

Whats new in v2.0.0

Release date: 2019-02-11
Current version: 2.0.0
File size: 10.47 MB
Developer: Masayuki Akamatsu
Compatibility: Requires iOS 8.0 or later. or Android KitKat 4.4, Lollipop 5.0, Marshmallow 6.0, Nougat 7.0, Oreo 8.0, Android Pie 9.0, Quince Tart 10, Red velvet cake 11, Snow cone 12 or later versions

4 things about Slide Rule

1. It consists of three linear strips and a sliding cursor and is used for multiplication, division, square, cube, square root, cubic root, trigonometry, logarithm and so on.

2. The slide rule (a.k.a. slipstick) is an mechanical analog computer which was formerly used for various scientific calculations, engineering design and surveying.

3. Please note that trigonometry and logarithm are not supported and the width of the scale is 900 pixels in this version.

4. This application is a slide rule simulator.

Apk Mirror 1: : Download APK

Slide Rule Reviews

what?!? no log or trig?!?

no log, no star!! (j/k)

~ By capotej

Feature Request

Would like the slide rule to remember its position (calculation) when leaving and returning to it. Would like to be able to rotate to all four orientations. Would like support for full Mobile resolution. Please continue compatibility with iOs 3.1.x If I put a value of 4 on B scale under 2 on A scale and look at B scale under 5 on A scale, it does not quite line up to the expected value of 10. Looking forward to these modifications to upgrade my rating to 5 stars. Thank you.

~ By 1001_apps

Needs fixing

The D scale is wrong. The spacing after pi is wrong, so the C and D scales cannot line up. Pass this by until it is fixed. Pray for Japan.

~ By Oldcalculator22

How retro!

I installed this mainly for it's inherent irony. I have no idea how it works, well I sorta do just by looking at it, but these predate me. I suspect the missing Trig scales would be on the opposite side of a real one, but that's just a guess. Anyway it is totally cool!

~ By Your Succubus

Works great! (needs trig and log scales)

I'm a 20-something engineer, and each year during Engineering Week, my workplace holds a slide rule competition to see who in the office can solve math problems using a slide rule. I like learning useless skills, so I decided to learn how to use a slide rule so I could compete. I found this app last year and it was awesome! It's also a good way to introduce the younger generation to this out-of-date math tool. The only problem I have with this app is that it doesn't include a trig scales or the log scale. Not only would adding those scales improve the quality of the app, but it will also allow me to use the app in the competition (because it always includes trig and log problems). -Jason

~ By draper1206