# uCalculator — Programmer Scientific Standard

> Programmer Scientific Standard (iPhone/iPad app by 伟锋 阮.)

- Source: https://appshunter.io/ios/app/ucalculator/id1471865233 (this page in markdown: same URL + `.md`)
- Developer: [伟锋 阮](https://appshunter.io/developer/994270912)
- Category: Utilities, Developer Tools
- Price: $4.99
- Age rating: 4+
- Requires: iOS 9.0 · 1 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2020-03-11
- Data updated: 2026-08-04
- User reviews in markdown: https://appshunter.io/ios/app/ucalculator/id1471865233/reviews.md

## What is uCalculator?

The most powerful, beautiful & high precision Programmer, Scientific and Standard calculator on the mobile/Pad platform.

The programmer mode calculator support binary(BIN), octal(OCT), decimal(DEC) and hexadecimal(HEX), precise to 64 digits.

The scientific mode calculator support most scientific calculation formula, precise to 32 digits.

The standard mode calculator is simple, elegant and practical, precise to 16 digits.

Automatic quick switch different calculator modes while device orientation changed if auto rotation enabled. You can also force to switch to any calculator mode by long touch the top-left 'u' button or long press the keyboard key 'u' then select the desire calculator mode.


## Version history (last 5 releases)

### 1.3 — 2025-10-14

Bug fixes and performance optimization.

### 1.2 — 2022-05-03

1. Add Memory function keys to standard calculator mode. 
        MC  => Memory Clear
        M+  => Add with the number in the memory
        M-   => Minus the number in the memory
        MR  => Memory Recall
2. Support iPad Split View and Slide Over window in any size
3. Support keyboard key press
4. Support toggle between button AC/C(Clear) and ←(Backspace) by long touch the button. It can also execute a Delete(Backspace) operation and toggle to Delete(Backspace) button immediately by press keyboard key Delete(Backspace) in the same time. vice versa, through Escape key against AC/C(Clear)
5. Support switch calculator modes by keyboard key 'u'.
6. Optimize performance
7. Bug fix

### 1.1 — 2020-03-20

1. Added support for key tones.
2. Added new menu page  to manually switch the calculator type, just long press the “uCalculator” button in the upper left corner until the menu appears.
3. Added support for copying and pasting numbers. Just long press digits on the main display area until the menu appears.
4. Added keep the latest calculation results while switching between different calculator types.

### 1.0.1 — 2020-03-12

Fix the problem that the app starts black screen when the system version is lower than 13.0.

### 1.0 — 2020-03-12

No release notes.

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## More apps by 伟锋 阮

- [uCalendär](https://appshunter.io/ios/app/ucalendar/id1505154614)
- [FlappyCondor](https://appshunter.io/ios/app/flappycondor/id1524183041)

All apps by 伟锋 阮: https://appshunter.io/developer/994270912

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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 2026-08-04.*