# Calculator - Editable History — Edit History, Tax & Reference

> Edit History, Tax & Reference (iPhone/iPad app by Kouichi Yamaguchi.)

- Source: https://appshunter.io/ios/app/calculator-editable-history/id6770569190 (this page in markdown: same URL + `.md`)
- Developer: [Kouichi Yamaguchi](https://appshunter.io/developer/1819294170)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 31 MB
- Languages: American English, French (France), Hindi, Indonesian, Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China) and 3 more
- Released: 2026-06-09
- Data updated: 2026-08-18
- User reviews in markdown: https://appshunter.io/ios/app/calculator-editable-history/id6770569190/reviews.md

## What is Calculator?

Calculator — Editable History, Tax & Reference.

A simple, powerful calculator with a memo-style editable history. Tap any past calculation to edit the formula or equation, name your result, and reference it in your next math problem. Includes one-tap tax buttons and a notebook-style history for everyday math.

No account registration, no subscription, free to use. Your calculation history is saved only on your device — never uploaded to our servers.

Features
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■ Editable History
Tap any past calculation in the history to edit the formula. Fix a typo, change a number, or update an equation — the result recalculates instantly. No other calculator lets you edit past math like this.

■ Named Results & Cross-Reference
Name any calculation result (e.g., "Rent", "Groceries", "Tax") and reference it in future formulas. Use the calculator as a math notebook for budgets, expenses, or any everyday math.

■ One-Tap Tax Buttons
Add or remove tax (consumption tax / sales tax) with a single tap. Customize the tax rate for your region. No more manual percentage math.

■ Full Calculation History
Every calculation is saved automatically in your history. Scroll back anytime to review past results, and tap any entry to edit it. Perfect for keeping track of a long series of calculations.

■ Customizable Themes & Fonts
Choose from multiple color themes and font sizes. Make the calculator easy to read for any age or visual preference.

■ Dark Mode Support
Automatically adapts to your system appearance. Comfortable for the eyes when doing math at night.

Recommended for
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■ Anyone tired of calculators with no editable history
■ People who need a memo-style calculator for budgets and expenses
■ Students who want to reference past results in new math problems
■ Anyone calculating tax or splitting a bill in everyday math

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Free, simple, and reliable. Download now to get the best editable history calculator with tax, formula reference, and named results.


## Version history (last 1 release)

### 1.0 — 2026-06-09

No release notes.

## More apps by Kouichi Yamaguchi

- [Escape Game - Base](https://appshunter.io/ios/app/escape-game-base/id6746975093)
- [Escape Mystery Bar](https://appshunter.io/ios/app/escape-mystery-bar/id6747636489)
- [QR Code Scanner & Generators :](https://appshunter.io/ios/app/qr-code-scanner-and-generators/id6747636748)
- [Puzzle Escape: Hospital](https://appshunter.io/ios/app/puzzle-escape-hospital/id6751545140)
- [Escape Game - Hotel](https://appshunter.io/ios/app/escape-game-hotel/id6752825541)
- [Escape Game -Three Little Pigs](https://appshunter.io/ios/app/escape-game-three-little-pigs/id6755348852)

All apps by Kouichi Yamaguchi: https://appshunter.io/developer/1819294170

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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 2026-08-18.*