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Rapid & Quick Calculator

Rapid & Quick Calculator

History Tape, Tax and Discount

1.5K ratings
158 reviews
With Ads
🔧 Utilities
💰 Finance
Free
With Ads

Details

  • Released
  • Updated
  • October 13, 2015
  • May 3, 2026

Developer

KinkumaDesign
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iphone
ipad
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About

A user-friendly calculator with essential functions and advanced features like tax and discount calculations. Easily reuse past calculations or edit expressions with intuitive controls. Offers customization options for themes and fonts.

✓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
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What's New in Rapid & Quick Calculator

6.7.0

May 3, 2026

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!

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User reviews

Most RecentHighest RatedLowest Rated

Overview

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

履歴が見にくくなった。

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。
a作。a作。

Great App

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

LOVE

I love this calculator. It is my favorite!!
Scorp.NovScorp.Nov

👍👍👍

This is a bookeepers dream come true. Not an exact copy of an adding machine but close enough. Love the tape!
D- Nice68D- Nice68
See 153 more reviews

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FAQ

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.