# ESCalc Scientific Calculator — For science and engineering

> For science and engineering (iPhone/iPad app by Masamori Endo.)

- Source: https://appshunter.io/ios/app/escalc-scientific-calculator/id6798053475 (this page in markdown: same URL + `.md`)
- Developer: [Masamori Endo](https://appshunter.io/developer/6798053477)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 26 MB
- Languages: American English
- Released: 2026-08-16
- Data updated: 2026-09-26
- User reviews in markdown: https://appshunter.io/ios/app/escalc-scientific-calculator/id6798053475/reviews.md

## What is ESCalc Scientific Calculator?

ESCalc (Endo Scientific Calculator) is a scientific calculator app developed by Masamori Endo of Tokai University, author of a Japanese guide to scientific calculators for university students and engineers, to study scientific calculator user interfaces.

Designed for university students, researchers, and engineers, ESCalc supports study, research, and practical work with intuitive controls and fewer keystrokes.

Key features
• CALC: reuse the same expression with different variable values
• Key physical constants based on CODATA 2022
• Degrees, minutes, and seconds input and automatic display
• Conversion between rectangular and polar coordinates
• General-purpose memory and user-defined constants
• Recall of calculation history

Your comments and feedback help our research into scientific calculator interfaces. We welcome your suggestions.


## Version history (last 5 releases)

### 2.2.2 — 2026-09-18

Improved expression editing and CALC operations for coordinate conversions (Pol/Rec). Prevented inappropriate memory storage during coordinate conversions and fixed repeated CALC execution. Improved error detection for invalid expressions containing commas.

### 2.2.1 — 2026-09-12

Pol/Recの2つの結果を同時に表示し、履歴でも2値を確認できるようにしました。累乗根・物理定数・キー表記を改善し、座標変換関数の不正な式を正しくエラーにしました。大きな文字サイズでも電卓画面が崩れないよう改善しました。

### 2.2.0 — 2026-09-07

計算履歴を改善し、現在の計算と過去の計算を分かりやすく参照できるようにしました。Calc機能実行中の履歴操作を修正し、履歴からの編集や未確定式・エラーの扱いも改善しました。

### 2.1.0 — 2026-08-31

関数入力をCASIO方式とSHARP方式から選べるようになりました。指数記号とメモリEの表示を明確に区別し、座標変換、逆数・負指数、F/E表示、DMS入力などの動作を改善しました。

### 2.0.3 — 2026-08-24

表示拡大時のレイアウト、根号入力、物理定数キーとヘルプ表示を改善しました。ゼロ結果のF/E切替、特定の小数計算、計算確定後のメモリ保存の問題を修正しました。

---

*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 2026-09-26.*