Calculator is one of the most used applications in both regular mobile phones and smartphones, in spite of an abundance of multimedia functions and other applications in the latter. Each Android-based smartphone comes with a pre-installed standard calculator, but its functionality is very limited. So I decided to search the Market for a fully-featured calculator app. After installing and testing few calculators my choice was RealCalc Scientific Calculator. The application is free, but there is an option to donate money to developers if you want to support them.

The interface is quite simple and intuitive to everyone who has ever seen a scientific calculator. Almost all buttons have one or more alternative functions. To use those, you can either press the Shift key, or long tap the appropriate button.

Application supports all numbering systems. It is very easy to switch between them – and as you do the number on the screen will be automatically changed. RealCalc Scientific Calculator also supports simple logical operations, such as “AND”, “OR”, etc.

One of the main advantages of this application is a built-in converter. It supports 12 different parameters, including  data size. It is important to note that the application is capable of distinguishing between Kibibytes and  Kilobytes. There is also a variety of different constants.

Another nice feature is the ability to customise and add your own conversion constants and parameters.

The calculator has a very good memory function. It can keep up to 10 user-stored numbers, and 7 calculation results that are saved automatically. Another useful feature worth mentioning is ‘Undo’.

Pros:

• Ease of use
• Fast speed of calculation
• Built-in converter
• Good memory

Cons:

• Lack of landscape orientation support

Conclusion:

If you are looking for a fully-functional scientific calculator for Android-based device give RealCalc Scientific Calculator a try. I think you will like it. Recommended!

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