# Recipe Scaler & Rule of Three — Direct proportion

> App for instant proportion calculation, recipe scaling, and rule of three problems. (iPhone/iPad app by Josue Cuginguilua.)

- Source: https://appshunter.io/ios/app/recipe-scaler-and-rule-of-three/id1508332297 (this page in markdown: same URL + `.md`)
- Developer: [Josue Cuginguilua](https://appshunter.io/developer/1485279395)
- Category: Utilities, Productivity, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 6 MB
- Languages: Arabic, Catalan, Croatian, Czech, Danish, Dutch, English, Finnish, French, German and 23 more
- Released: 2020-04-16
- Data updated: 2026-06-24
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/recipe-scaler-and-rule-of-three/id1508332297/reviews.md

## What is Recipe Scaler & Rule of Three?

Calculate proportions instantly and simplify everyday problems with two powerful tools in one app.

Whether you're cooking, studying, or solving real-life math problems, this app helps you get accurate results in seconds without complex calculations.

It includes a recipe scaler to adjust ingredients while keeping perfect proportions, a rule of three calculator, and an intuitive Q&A tool to help you solve homework-style questions easily.

FEATURES
• Recipe Scaler
Adjust any recipe automatically while maintaining perfect proportions.

• Rule of Three Calculator
Solve proportion problems quickly and accurately.

• Ask & Learn
Not sure how to solve a problem? Ask your question and get a clear answer instantly.

• Fast & Simple Interface
Clean design optimized for speed and ease of use.

## Key features

- Recipe scaling
- Rule of three calculation
- Q&A problem solver
- Fast and simple interface
- Accurate results

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/recipe-scaler-and-rule-of-three/id1508332297/reviews.md

### 1/5 — Bad

*2023-07-13, version 4*

It really doesn’t make the right calculation

### 1/5 — calculo errado!

*2020-09-18, version 1.0.1*

nao faz os cálculos corretamente

## Frequently asked questions about Recipe Scaler & Rule of Three

### What is Recipe Scaler & Rule of Three used for?

Recipe Scaler & Rule of Three is a utility app designed to instantly calculate proportions. It helps users adjust recipes, solve rule of three problems, and answer homework-style math questions quickly and accurately.

### Does Recipe Scaler & Rule of Three have ads?

Yes, Recipe Scaler & Rule of Three contains advertisements. As a free utility app, ads are displayed to support its development and maintenance.

### Is Recipe Scaler & Rule of Three free to use?

Yes, Recipe Scaler & Rule of Three is available for free. It is supported by advertisements, allowing users to access its features without any upfront cost.

### What devices is Recipe Scaler & Rule of Three compatible with?

Recipe Scaler & Rule of Three is compatible with iPhones, iPads, and iPods. It is designed for iOS devices.

### How often is Recipe Scaler & Rule of Three updated?

The latest version of Recipe Scaler & Rule of Three is version 6, last updated on May 20, 2026. This indicates a recent update, suggesting ongoing support and potential for future improvements.

### What is the age rating for Recipe Scaler & Rule of Three?

Recipe Scaler & Rule of Three has an age rating of 4+. This means it is considered appropriate for children aged 4 and above, suitable for educational purposes.

### Can Recipe Scaler & Rule of Three help with cooking?

Yes, Recipe Scaler & Rule of Three includes a dedicated Recipe Scaler feature. This tool allows you to automatically adjust any recipe's ingredients while maintaining perfect proportions, making it easier to cook for different serving sizes.

### How does the 'Ask & Learn' feature work in Recipe Scaler & Rule of Three?

The 'Ask & Learn' feature in Recipe Scaler & Rule of Three is an intuitive Q&A tool. If you are unsure how to solve a particular math problem, you can ask your question and receive a clear, instant answer.

## Version history (last 5 releases)

### 6 — 2026-05-20

New Recipe Scaler tool to instantly adjust ingredient amounts while keeping perfect proportions

### 5 — 2026-02-13

New languages supported.

### 4.2 — 2025-01-23

* Homework help questions! Now you can make questions about rule of three and we will solve them for you!
* New design

### 4 — 2021-04-02

iOS 14 security updates.

### 3 — 2020-12-08

- Changing the font of the app
- Design changes, rounded borders.

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## More apps by Josue Cuginguilua

- [Miaupp: Curiosidades de gatos](https://appshunter.io/ios/app/miaupp-curiosidades-de-gatos/id1485279666)
- [En_cesta - Easy Shopping List](https://appshunter.io/ios/app/en-cesta-easy-shopping-list/id1485573145)
- [surface of cylinder calculator](https://appshunter.io/ios/app/surface-of-cylinder-calculator/id1488761823)
- [Calculate Discount and Sales](https://appshunter.io/ios/app/calculate-discount-and-sales/id1489384233)
- [GCD and GCF Simple Calculator](https://appshunter.io/ios/app/gcd-and-gcf-simple-calculator/id1492483841)

All apps by Josue Cuginguilua: https://appshunter.io/developer/1485279395

## Related topics

[Rule of Three](https://appshunter.io/ios/topics/rule-of-three)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*