Rule of Three

Developer: Marcio Rosa

Category: Tools

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63.4K installs

Ratings not yet available

3.1K monthly active users

$<10K monthly revenue est.

IAP 0% · Ad 100%

Install Trends

Weekly +191

Steady

Monthly +860

Steady

Rule of Three Summary

Rule of Three is a ad-supported Android app in Tools by Marcio Rosa. Released in Jul 2016 (9 years ago). It has about 63.4K+ installs Based on AppGoblin estimates, it reaches roughly 3.1K monthly active users and generates around $<10K monthly revenue (0% IAP / 100% ads). Store metadata: updated Aug 17, 2025.

Recent activity: 191 installs this week (860 over 4 weeks) showing steady growth View trends →

Store info: Last updated on Google Play on Aug 17, 2025 .

SDKs, Trackers & Permissions

App not yet scanned for SDKs.

App Details

Store ID: regradetres.cursoandroid.com.regradetres

First Released: 2016-07-24

Store Last Updated: 2025-08-17

In-App Purchases: No

Ads: Yes

Website: marciorroficial.blogspot.com

App Store

Crawl Status: Success

AppGoblin First Crawled: 2025-02-12

AppGoblin Last Crawled: 2026-06-05

Ads & App-Ads.txt

Ads.txt Last Crawled: 2025-10-12

Ads.txt Crawl Status: Success

AppGoblin SDK Scans

App not yet analyzed for SDKs.

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4.59★

Ratings: 0

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Screenshots

App Description

Application for calculating the Rule of Three direct or inverse.

We do Rule of Three's calculations, also known as cross multiplication, several times a day, often without even realizing it. This application has been made to make your life easier, making it possible, in seconds, to solve issues that are common in our daily lives, such as changing quantities of ingredients in recipes, calculating fuel consumption, finding any kind of quantities that are proportional, etc.
Rule of Three is a simple, useful and free app.