# Ratio & Text Calculator — for proportional expressions

> Calculates proportional expressions and mathematical formulas using text input or Apple Pencil. (iPhone/iPad app by hideko ogawa.)

- Source: https://appshunter.io/ios/app/ratio-and-text-calculator/id1592937943 (this page in markdown: same URL + `.md`)
- Developer: [hideko ogawa](https://appshunter.io/developer/412806000)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.40/5 from 7 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 0 MB
- Languages: American English, Japanese
- Released: 2021-11-02
- Data updated: 2026-08-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ratio-and-text-calculator/id1592937943/reviews.md

## What is Ratio & Text Calculator?

This is a simple calculator that calculates proportional expressions and formulas.

● Ratio Calculator
You can calculate proportional expressions and addition ratio.

- Examples of use for addition ratio
In a recipe that uses okara, okara powder is substituted.
For every 10g of okara powder, 35g of water is needed.
How much is needed to make 100g of okara?

● Text Calculator
Calculates mathematical expressions entered on the keyboard.
You can paste numbers or write them with the Apple Pencil instead of using buttons.
You can also use sqrt, log, ln, floor, ceiling, abs, trunc, and randomn.

## Key features

- Ratio calculator for proportional expressions
- Addition ratio calculations
- Text calculator for mathematical expressions
- Supports keyboard input
- Supports Apple Pencil input
- Includes advanced functions like sqrt, log, and abs

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/ratio-and-text-calculator/id1592937943/reviews.md

### 4/5 — オールクリア

*2025-07-24*

新たな数値を入力する際に、一つ一つCボタンをタップしなけれはいけないのが、地味に面倒。
オールクリアの機能を付けていただきたい。

### 5/5 — 必要十分

*2025-06-27*

これがあると生活のさまざまな場面で便利です。
足し算のところはまだ使ってないですが。
広告もなく、無料なので、本当に良心のアプリです。
せめて百円くらい課金させて欲しい。

### 3/5 — Good app but needs a clear button

*2024-10-30*

It’s a good app but it desperately needs a “clear all contents” button to clear ALL contents rather than have to keep pressing Clear in each individual section.

## Frequently asked questions about Ratio & Text Calculator

### What is Ratio & Text Calculator used for?

Ratio & Text Calculator is a utility app designed to calculate proportional expressions and mathematical formulas. It features a ratio calculator for tasks like recipe scaling and a text calculator that accepts keyboard or Apple Pencil input for complex equations.

### Does Ratio & Text Calculator support Apple Pencil?

Yes, Ratio & Text Calculator supports Apple Pencil input. You can write mathematical expressions directly with the Apple Pencil instead of using traditional buttons, making input more intuitive.

### What kind of mathematical functions does Ratio & Text Calculator include?

Ratio & Text Calculator supports several advanced mathematical functions, including sqrt (square root), log (logarithm), ln (natural logarithm), floor, ceiling, abs (absolute value), trunc (truncate), and randomn.

### Is Ratio & Text Calculator free to use?

Yes, Ratio & Text Calculator is available for free. It does not have any associated costs for download or usage.

### What devices is Ratio & Text Calculator compatible with?

Ratio & Text Calculator is compatible with iPhone, iPad, and iPod devices. It is designed to run on the iOS platform.

### How often is Ratio & Text Calculator updated?

Ratio & Text Calculator was last updated on November 3, 2021, to version 1.0.1. The initial release date was November 2, 2021.

### What is the age rating for Ratio & Text Calculator?

Ratio & Text Calculator has an age rating of 4+. This indicates it is suitable for users aged 4 and above.

### Does Ratio & Text Calculator have ads?

No, Ratio & Text Calculator does not contain advertisements. It is an ad-free application.

## Version history (last 2 releases)

### 1.0.1 — 2021-11-03

Bug fixes

### 1.0.0 — 2021-11-02

No release notes.

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## More apps by hideko ogawa

- [12 WhiteBoards](https://appshunter.io/ios/app/12-whiteboards/id604395964)
- [Daylight Saving Time](https://appshunter.io/ios/app/daylight-saving-time/id1165950653)
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- [RecipeNote](https://appshunter.io/ios/app/recipenote/id1456128363)
- [Stitch Graph Paper](https://appshunter.io/ios/app/stitch-graph-paper/id1604058972)

All apps by hideko ogawa: https://appshunter.io/developer/412806000

## Related topics

[hideko ogawa](https://appshunter.io/ios/topics/hideko-ogawa) · [ratio calculator](https://appshunter.io/ios/topics/ratio-calculator) · [ratio calculator tool](https://appshunter.io/ios/topics/ratio-calculator-tool) · [ratio calculator pro](https://appshunter.io/ios/topics/ratio-calculator-pro)

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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 2026-08-22.*