# Rapid & Quick Calculator — History Tape, Tax and Discount

> Easy-to-use calculator with history tape, tax, and discount functions. (iPhone/iPad app by KinkumaDesign.)

- Source: https://appshunter.io/ios/app/rapid-and-quick-calculator/id1046214532 (this page in markdown: same URL + `.md`)
- Developer: [KinkumaDesign](https://appshunter.io/developer/385697725)
- Category: Finance, Utilities
- Price: Free
- Rating: 4.80/5 from 1,473 App Store ratings · 179 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 7 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China)
- Released: 2015-10-13
- Data updated: 2026-08-30
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/rapid-and-quick-calculator/id1046214532/reviews.md

## What is Rapid & Quick Calculator?

Over 300,000 downloads worldwide!

A fast, friendly calculator built for everyday use — shopping, splitting bills, household budgeting, and more.

FEATURES
* History Tape — review your past calculations and reuse any answer with a single tap
* Expression Input — type the whole equation, just like you'd write it on paper
* Sales Tax — toggle tax-included/excluded with a single button; swipe to switch between multiple tax rates
* Percentage Discounts — e.g. 100 - 30% = 70
* Precise Rounding Settings
* Multiple Color Themes
* Multiple Font Sizes and Typefaces
* Arrow Keys — move the cursor left or right to edit any part of the expression
* Share — send expressions and answers to other apps
* iPad Support — including Slide Over and Split View on supported devices
* Sound Effects

To reuse or edit an equation from your history, swipe left on it (or touch and hold) to open the menu.

We'd love to hear your feedback!

This is the free version. A paid version is also available — it removes ads and offers four tax keys (the free version has two).

## Key features

- History Tape for reusing answers
- Sales tax calculations
- Discount calculations
- Precise rounding settings
- Customizable themes and fonts
- Editable expressions with cursor keys
- Share expressions and answers

## Recent user reviews (10 of 179)

All indexed reviews: https://appshunter.io/ios/app/rapid-and-quick-calculator/id1046214532/reviews.md

### 5/5 — ありがとう！

*2026-08-17*

助かってます！前の計算も、画面に残ることもあるので、パッと見て分かりやすい！

### 5/5 — Overview

*2026-07-17, version 6.7.0*

I have had this app for a very long time. 
It never crashes, glitches, or has any issues. Just an excellent calculator

### 3/5 — 履歴が見にくくなった。

*2026-06-16*

軽いし使いやすいので長年使っていたのですが、スマホを買い替えて再ダウンロードしたら、スマホのサイズのせいかiosのせいか分からないですが、電卓部分と計算式の部分が縦長になって履歴が今までの半分くらいしか見えなくなってしまって残念です。今は文字サイズを小さくしてなんとか使っていますが老眼にはちきついです。
電卓部分の色調整だけでなくサイズ調整または以前のサイズに戻して頂けるとありがたいです。

### 5/5 — Great App

*2026-05-28, version 6.7.0*

I really enjoy this app. I’m just too cheap to buy the one without ads. Sorry, developer.

### 5/5 — LOVE

*2026-05-28, version 6.7.0*

I love this calculator. It is my favorite!!

### 5/5 — 👍👍👍

*2026-05-07, version 6.7.0*

This is a bookeepers dream come true. Not an exact copy of an adding machine but close enough. Love the tape!

### 2/5 — Disappointed

*2025-12-30, version 6.6.0*

The calculator works quite well. I’m not at all impressed with the semi-nude AD pictures that occasionally pop up This is ridiculous. Stop doing this!

### 5/5 — 長く使っています

*2025-11-25*

シンプルで使いやすいです。
自分が見やすいように色をカスタム出来るのも気に入っている所です。

### 3/5 — 音がしなくなった？

*2025-10-26*

アプリの設定では音ありなのに…

### 1/5 — 消えるんだ！

*2025-09-29*

計算中、『AC』で、全消えするならわかるけど、『C』を押しても、全消えしてしまったので、沢山、計算の列をつくっていて、途中で打ち間違えたのがあったので『C』を押して、打ち直そうかと思いきや、全消えしてショックでした😱

## Frequently asked questions about Rapid & Quick Calculator

### What does this calculator app do?

This app is a user-friendly calculator that offers basic arithmetic functions along with advanced features. It allows for sales tax and discount calculations, supports editing of expressions, and provides a history tape to easily reuse previous answers.

### What are the key features of this calculator?

Key features include a history tape for reusing answers, sales tax and discount calculations, precise rounding settings, customizable themes and font sizes, and cursor keys for easy expression editing. You can also share expressions and answers with other apps.

### Is this app free to use?

Yes, this is the free version of the app, which is supported by ads. A paid version is also available that removes ads and offers additional tax keys.

### What devices is this calculator compatible with?

The app supports iPads and offers compatibility with Slide Over and Split View features on compatible iPad models, providing a flexible user experience across different devices.

### How can I reuse a past calculation?

You can reuse a past calculation by swiping left on the history tape entry to reveal a menu of options, or by touching and holding the history entry. This allows you to easily select and reuse or edit previous equations.

## Version history (last 5 releases)

### 6.7.0 — 2026-05-03

We've refreshed the wording across all languages for a more natural feel.

- Refined translations and wording in each language to feel more natural and easier to read
- Added support for iOS 26
- Now requires iOS 17.6 or later
- Improved overall stability

Thank you for your continued support!

### 6.6.0 — 2024-10-30

- Stability improvements​​

### 6.5.1 — 2022-10-08

- Stability improvements​​

### 6.5.0 — 2022-09-14

- Stability improvements​​.

### 6.4.1 — 2021-05-04

Thank you for using R&Q Calculator.
- Fixed an issue where the layout would collapse when Split View and Slide Over on iPad
- Fixed to calculate only with computable strings
- Other minor improvements
we appreciate for your feedback.

## Apps similar to Rapid & Quick Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sales Tax Calculator >](https://appshunter.io/ios/app/sales-tax-calculator/id737369063) | 4.8 (2,517) | Free | Finance |
| [Financial Calculator: Percent](https://appshunter.io/ios/app/financial-calculator-percent/id957134762) | 4.7 (14,664) | Free | Finance |
| [Rapid & Quick Calculator Pro](https://appshunter.io/ios/app/rapid-and-quick-calculator-pro/id1067631562) | 4.9 (205) | $3.99 | Finance |
| [Discount Calculator ∙ Sale Amt](https://appshunter.io/ios/app/discount-calculator-sale-amt/id1143972266) | 4.7 (2,981) | Free | Finance |
| [Sales Tax Calculator - Tax Me](https://appshunter.io/ios/app/sales-tax-calculator-tax-me/id403569006) | 4.8 (5,429) | Free | Finance |
| [Fast Percent - Calculator Tool](https://appshunter.io/ios/app/fast-percent-calculator-tool/id812021371) | 4.5 (414) | Free | Finance |

## More apps by KinkumaDesign

- [Habit Keeper - Fast Habits Tracker](https://appshunter.io/ios/app/habit-keeper-fast-habits-tracker/id567646997)
- [Habit Keeper - Habits Tracker](https://appshunter.io/ios/app/habit-keeper-habits-tracker/id602525022)
- [Rapid & Quick Calculator Pro](https://appshunter.io/ios/app/rapid-and-quick-calculator-pro/id1067631562)
- [Notes and Folders](https://appshunter.io/ios/app/notes-and-folders/id1126289455)

All apps by KinkumaDesign: https://appshunter.io/developer/385697725

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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 2026-08-30.*