# Rule of Proportion PRO

> With solution steps

Canonical page: [https://chrome-stats.com/d/id1497341819](https://chrome-stats.com/d/id1497341819)

## Overview

- **ID:** `id1497341819`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Glindemann, Sennoun, Langer GbR
- **Category:** Education
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 2.2.3
- **Last updated:** 2026-08-14
- **First published:** 2020-02-01
- **Size:** 179 MB
- **Data as of:** 2026-09-09
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/rule-of-proportion-pro/id1497341819)
- **Website:** [https://solving-math.com](https://solving-math.com/)
- **Privacy policy:** [https://gslstudios.com/privacy-policy/commercial-apps](https://gslstudios.com/privacy-policy/commercial-apps)

## Description

Proportions are no problem anymore. For this, only 3 of 4 variables must be entered. All calculations are stored in the history. The final solution can be shared.

[ Content ]
- the variables must be entered
- calculation with the rule of proportion
- history function that saves input
- detailed solution
- the entering of fractions and decimals is supported
- constants can be entered
- no ads!

[ Usage ]
- there are 4 fields for entering the values ​​using a modified keyboard
- if you have entered wrong values or values are missing, the text fields are highlighted
- you can switch between the solution, input view and history by swiping and / or touching the buttons
- the entries in the history can be deleted or sorted manually
- if you select an entry in the history, it will be loaded automatically for the calculation
- the entire history can be deleted by pressing a key

## Rankings

- #540,059 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1497341819)