This is my suggestion for Simple Calculator app by Muledog.
Components
Simple Calculator is open source app that can add, subtract, multiply and divide. It is an application with a simple interface.
Proposal
My suggestion for this app is to lessen the font text because it's too big that it can't occupy more digit.
Mockups / Examples
This photo below is the feature of Simple Calculator.
This is the edited photo of Simple Calculator with the new version which is the lessening of font text.
Benefits
The importance of lessening the font text is that the user can input more number. It can also make the app have a better version.
Posted on Utopian.io - Rewarding Open Source Contributors