Add the History feature

Simple Calculator

Simple calculator is a mobile application used for making mathematical calculations. This application has an arranged design where functions and numbers are perfectly positioned in the keyboard.

Proposal

Using the application to make some calculations, I noticed I could not recall the last calculation made. I could not check my calculation history.

My suggestion is that the History feature should be added to the application. In a normal calculator, users can check the their last calculation (about last five calculation). For example, when a user needs to recall the result of a recent calculation or when users needs to check what was added to get a result, especially when there is a confusion; that is where the History feature comes in.

With most electronic calculator, users can use the recall button on the calculator to check their calculation history. I will suggest the history function should be added to the application.

Mockups / Examples

Here's an edited screenshot below showing where the history feature can be positioned in the application:

After the users drags down the arrow, the calculation history should show as illustrated in the screenshot below:

Benefits

With this feature users can easily check the recent history of their calculation for reference, confirmation and many other reasons . Also, calculations can be kept by the application so users can come back anytime to review or adjust. The feature can be used to check the history and details of what has just been calculated with just one touch. This feature will make the application complete, flexible and more reliable. This feature allows users to recall their previous and recent calculations.