---
title: "Rule of Proportion PRO - Reviews, Revenue and Downloads in United States | Apple App Store"
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 "
---

# Rule of Proportion PRO — United States
> With solution steps

![Rule of Proportion PRO App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/3e/2b/be/3e2bbe53-777a-594a-ea22-87a5e3e7cdd4/AppIcon-ROP-PRO-0-0-1x_U007emarketing-0-8-0-85-220.png/400x400bb.png)

**Developer:** [Glindemann, Sennoun, Langer](https://apptail.io/developer/glindemann-sennoun-langer-xbI)
**Category:** Education
**Rating:** 5.0/5 (3 ratings)
**Price:** Free
**Bundle ID:** de.flooki.Solving-Math-rule-of-proportion-pro-ios
**Store:** Apple App Store
**Country:** United States
**Version:** 2.2.3 (released 2026-08-14)
**Original Release:** 2020-02-01

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1497341819)
**AppTail Page:** [https://apptail.io/app/rule-of-proportion-pro-jACi/united-states](https://apptail.io/app/rule-of-proportion-pro-jACi/united-states)

## Rule of Proportion PRO 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

## Rule of Proportion PRO Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/62/49/97/624997ab-b5c9-6fd3-ac65-9b54aca9e14d/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/c3/05/c8/c305c8bb-2019-472d-3ea4-5d1982b2d50d/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/54/f4/48/54f448eb-147d-88f7-1ca0-b3814fa4287c/pr_source.png/1242x2688.png)

## Rule of Proportion PRO Rating Breakdown in United States
- 5 stars: 3 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)





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## Rule of Proportion PRO Available In
- [United States](https://apptail.io/app/rule-of-proportion-pro-jACi/united-states)
- [Taiwan](https://apptail.io/app/rule-of-proportion-pro-jACi/taiwan)
- [Germany](https://apptail.io/app/rule-of-proportion-pro-jACi/germany)
- [United Kingdom](https://apptail.io/app/rule-of-proportion-pro-jACi/united-kingdom)
- [Italy](https://apptail.io/app/rule-of-proportion-pro-jACi/italy)
- [Mexico](https://apptail.io/app/rule-of-proportion-pro-jACi/mexico)
- [Russia](https://apptail.io/app/rule-of-proportion-pro-jACi/russia)
- [Belarus](https://apptail.io/app/rule-of-proportion-pro-jACi/belarus)
- [Canada](https://apptail.io/app/rule-of-proportion-pro-jACi/canada)
- [Switzerland](https://apptail.io/app/rule-of-proportion-pro-jACi/switzerland)
- [Chile](https://apptail.io/app/rule-of-proportion-pro-jACi/chile)
- [China](https://apptail.io/app/rule-of-proportion-pro-jACi/china)
- [Colombia](https://apptail.io/app/rule-of-proportion-pro-jACi/colombia)
- [Cyprus](https://apptail.io/app/rule-of-proportion-pro-jACi/cyprus)
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- [Ecuador](https://apptail.io/app/rule-of-proportion-pro-jACi/ecuador)
- [Egypt](https://apptail.io/app/rule-of-proportion-pro-jACi/egypt)
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- [Finland](https://apptail.io/app/rule-of-proportion-pro-jACi/finland)
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- [Israel](https://apptail.io/app/rule-of-proportion-pro-jACi/israel)
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- [Kazakhstan](https://apptail.io/app/rule-of-proportion-pro-jACi/kazakhstan)
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- [Lithuania](https://apptail.io/app/rule-of-proportion-pro-jACi/lithuania)
- [Malaysia](https://apptail.io/app/rule-of-proportion-pro-jACi/malaysia)
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- [Netherlands](https://apptail.io/app/rule-of-proportion-pro-jACi/netherlands)
- [Norway](https://apptail.io/app/rule-of-proportion-pro-jACi/norway)
- [Nepal](https://apptail.io/app/rule-of-proportion-pro-jACi/nepal)
- [New Zealand](https://apptail.io/app/rule-of-proportion-pro-jACi/new-zealand)
- [Peru](https://apptail.io/app/rule-of-proportion-pro-jACi/peru)
- [Philippines](https://apptail.io/app/rule-of-proportion-pro-jACi/philippines)
- [Pakistan](https://apptail.io/app/rule-of-proportion-pro-jACi/pakistan)
- [Poland](https://apptail.io/app/rule-of-proportion-pro-jACi/poland)
- [Portugal](https://apptail.io/app/rule-of-proportion-pro-jACi/portugal)
- [Romania](https://apptail.io/app/rule-of-proportion-pro-jACi/romania)
- [Saudi Arabia](https://apptail.io/app/rule-of-proportion-pro-jACi/saudi-arabia)
- [Sweden](https://apptail.io/app/rule-of-proportion-pro-jACi/sweden)
- [Singapore](https://apptail.io/app/rule-of-proportion-pro-jACi/singapore)
- [Thailand](https://apptail.io/app/rule-of-proportion-pro-jACi/thailand)
- [Tunisia](https://apptail.io/app/rule-of-proportion-pro-jACi/tunisia)
- [Türkiye](https://apptail.io/app/rule-of-proportion-pro-jACi/turkey)
- [Ukraine](https://apptail.io/app/rule-of-proportion-pro-jACi/ukraine)
- [Uzbekistan](https://apptail.io/app/rule-of-proportion-pro-jACi/uzbekistan)
- [Vietnam](https://apptail.io/app/rule-of-proportion-pro-jACi/vietnam)
- [United Arab Emirates](https://apptail.io/app/rule-of-proportion-pro-jACi/united-arab-emirates)
- [South Africa](https://apptail.io/app/rule-of-proportion-pro-jACi/south-africa)
- [Argentina](https://apptail.io/app/rule-of-proportion-pro-jACi/argentina)
- [Austria](https://apptail.io/app/rule-of-proportion-pro-jACi/austria)
- [Australia](https://apptail.io/app/rule-of-proportion-pro-jACi/australia)
- [Azerbaijan](https://apptail.io/app/rule-of-proportion-pro-jACi/azerbaijan)
- [Belgium](https://apptail.io/app/rule-of-proportion-pro-jACi/belgium)
- [Brazil](https://apptail.io/app/rule-of-proportion-pro-jACi/brazil)

---

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