Circular Slide Ruler

v1.1.1

Matteo Bertini

4.40

98 reviews

10,000+
Downloads

Free

Align the inner and outer rules and find on the circle all the multiples.

4.40 · 98 reviews · 10,000+ downloads

Download from Google Play

About Circular Slide Ruler

Circular Slide Ruler is a tools app developed by Matteo Bertini.

How many times has Circular Slide Ruler been downloaded?

Circular Slide Ruler has been downloaded 11 thousand times. In the last 30 days, the app was downloaded 0 times.

What is the rating of Circular Slide Ruler?

Circular Slide Ruler is rated 4.40 out of 5 stars, based on 98 ratings.

Is Circular Slide Ruler free?

Circular Slide Ruler is free to download. The APK download size is 56.59 kB. The latest version available is v1.1.1. The last update was on April 3, 2014.

What are the requirements for Circular Slide Ruler?

Circular Slide Ruler requires Android 2.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since July 2013.

Description

Once all the pilots had a rule of this kind on the clock, knowing how to do multiplication and division quickly could save your life.

Alternative downloads for the Circular Slide Ruler app

Google Play Rating history and histogram

Rating history

Subscribe to see the full rating timeline

Downloads over time

Subscribe to see download velocity and history

Circular Slide Ruler has been downloaded 11 thousand times. Over the past 30 days, it has been downloaded 0 times.

Changelog of Circular Slide Ruler

Show changelog

Developer information for Matteo Bertini

Matteo Bertini

matteo@naufraghi.net

Website

Legal name:

Address:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.

I'm the developer of this app

Comments on Circular Slide Ruler for Android

★★★★★ Mark Lammas · Oct 30, 2025

This is very intuitive, and easy to use. The lack of complex graphics means that the screen motion is smooth with no lag. This goes into my regular set of favorite slide rules which I use often. There is space on the rule for further graduations among the early numbers; line length will be sufficient to highlight them as appropriate. With sufficient useful graduations visible, this will make a VERY high resolution slide rule when used on a large tablet. Dragging outside the circle is superb!

★★★★★ A Google User · Aug 7, 2013

Simple and useful. Does what you would expect. Circular slide rule for multiplication and division. Inner wheel is fixed. You turn the outer wheel. Two digit precision. Use for quick unit conversion (miles/km, pounds/kg), currency conversion, price discounts, DSLR focal length crop ratio. Remembers the ruler position even if you restart your phone. Search YouTube for aviation watch converting currency, for a tutorial.

★☆☆☆☆ Elliot Jenner · Jul 21, 2017

What scale is this supposed to be? If it's multiplication there is a problem, because the outer and inner don't line up correctly (ex. 10*20 gives 500, not 200). Also, why start at 10 instead of one as on most physical slide rules (obviously it's just decimal shifting but why bother)?

★★☆☆☆ Robert Bartusiak · Sep 25, 2015

Any guide available? How to use this thing? The fact that creators of this app know it does not mean that everyone else was born with this knowledge.

Google Play Rankings for Circular Slide Ruler

This app is not ranked

Technologies used by Circular Slide Ruler

Subscribe to see full permission and library details

Top new apps Apps other people are watching Today's trending apps Popular Tools Apps Apps on sale

AppBrain is a directory focused on discovering great apps and games. We give statistics, rankings and search options that Google Play and the App Store don't have. All trademarks are owned by their respective owners. AppBrain doesn't offer APKs or binaries, and always lets users install the official version from Google Play or the App Store.

More apps

Price	Free to download
Total downloads	11 thousand
Recent downloads	0
Rating	4.40 based on 98 ratings
Ranking	Not ranked
Version	v1.1.1
APK size	56.6 KB
Number of libraries	0
Designed for Android	2.1+
Suitable for	Everyone
Ads	NO ads