Calculator is the application used to calculate. This app has an arranged design where functions and numbers are positioned perfectly on the keyboard.
My suggestion for this calculator app is to add a history feature to the calculation result so that the calculation result is not lost if the user needs it again.
Before
After
The usefulness or more precise benefit of the idea is, all users of this calculator, to see the results have been calculated. With my idea this user should not be afraid if forgot the result has been calculated because it is still alive in history. I think this is very in need by all the users of the calculator.
