Rule-Of-Three Calculator
Rule-Of-Three Calculator is made and published by mbar Software. AppBrain is an independent app data site and isn't affiliated with mbar Software. The app name, icon, screenshots and description belong to mbar Software and are shown as published on Google Play.
AppBrain's verdict
Removed- Rating on Google Play
- 4.89
- 285 ratings
- Installs
- 45 thousand
- Last updated
- May 2, 2021
- Ads
- No ads
- Size
- 1.70 MB
Rule-Of-Three Calculator is no longer on Google Play. It was there for 10 years, until August 2026. It had 45 thousand installs. Users loved it: 4.9 stars from 285 ratings.
User feedback
Ratings and reviews on Google PlayComments on Rule-Of-Three Calculator for Android
Google Play Rating history and histogram
The year before it was removed from Google Play, up to August 2026
Store listing
By mbar Software, from Google PlaySimilar apps
“Proportion Calculator - direct and indirect proportions. Ad-free.”
Description by mbar Software Written by the developer, not by AppBrain. Click to read.
This App calculates proportions (direct or indirect), also known as "rule of three" by entering three known values and hitting "Calculate". The App will calculate the missing value for you!
NEW in Version 2.0: The formula used for calculation can be shown with all details after a calculation has been made!
You can use this feature to increase your understanding in solving the rule-of-three.
A history of calculated values is kept and can be managed within the App.
Dark Mode is supported and can easily be switched with the black/white icon in the top right corner.
- mbar School Tools are free to use, have no ads, and will mostly require no special permissions!
Recent changes:
Hotfix: Solved a crash when showing/hiding the keyboard.
Safety and technology
Found in the app by AppBrain- Ads
- No ads
- Price
- Free
- Libraries
- 10
- App size
- 1.70 MB
- Needs Android
- 6.0+
- Content rating
- Everyone
Technologies used by Rule-Of-Three Calculator
Releases
Updates seen on Google Play- Version
- 2.2.934
- Launched
- January 2018
Installs
Tracked by AppBrain- Play install range
- 10+ thousand
- Launched
- January 2018
Installs over time
The year before it was removed from Google Play, up to August 2026
Rule-Of-Three Calculator was installed 45 thousand times before it was removed.
About the app and developer
About Rule-Of-Three Calculator
Rule-Of-Three Calculator was an education app developed by mbar Software. It was removed from Google Play Aug 5, 2026.
Install Statistics
Rule-Of-Three Calculator had been installed 45 thousand times before it became unavailable.
User Ratings
Rule-Of-Three Calculator was rated 4.89 out of 5 stars, based on 290 ratings.
App Information
Rule-Of-Three Calculator was free. The app size was 1.70 MB. The last available version was 2.2.934. The last update was on May 2, 2021.
Technical Requirements
Rule-Of-Three Calculator required Android 6.0+ or higher. The app had a content rating of Everyone. The app had been available on Google Play since January 2018.
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