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  • #: 10728
  • Price: $1.99 In Apple Store
  • Category: Utilities
  • Updated: 2010-08-06
  • Current Version: 1.31
  • 1.31
  • Size: 1.10 MB
  • Language: English, Japanese
  • Seller: Hiroki Kokubun
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.1.3 or later
  • © Hiroki Kokubun
  •  Add to Favorite apps



Calqum is a customizable scientific calculator.

You can modify the button layout, and change the appearance.

Customize these settings, and make Calqum of your favorite calculator.


- Customizable button layout

- Simple interface (just like the home screens of iPhone)

- Displays both formula and answer

- Supports various scientific functions

- Some themes

The additional features in the Full version:

- More themes (+2)

- Memory functions (m+, m-, mr, mc)

- Mathematical/Physical constants

- Setting about the angle unit (rad/deg)

- Cursor (you can modify the formula at the cursor position)

Plan for update:

- Improving user interface

- More buttons

- More themes

- Advanced settings

I think users' feedback is very important to improve this app.

Please give me your feedback.

What's New in Version 1.31

* Changed the icon on iTunes
* Fixed the bug about tax+/- (syntax error)

iPhone Screenshots

Calqum iPhone Screenshot 1
Calqum iPhone Screenshot 2

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The information may be outdated (2011-03-27 10:17:46). For actual information go to iTunes

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