This is my suggestion to Simple Calculator app by Muledog.
Components
Simple Calculator is open source app that can add, subtract, multiply and divide. It has a simple interface.
Proposal
My suggestion in Simple Calculator app is to have history log feature. The history log will serve as the recorder of the past calculated numbers.
Mockups/Examples
Below is the photo that shows the features of Simple Calculator.
The photo below is the edited photo which shows the new version which shows the history log feature.
Benefits
The importance of having history log feature is that it can help the user to recall the details he or she calculated that he or she seems to forget. It will list the past record the user calculated. It can make the app more enhance and updated.
Posted on Utopian.io - Rewarding Open Source Contributors