About Learning app for iPhone and iPad

We all know that everyone needs to learn a lot of skills, such as learning guitar, and learning to cook. So these are what we need to spend on our learning journey. We need to keep a good record.
Introducing this application to everyone:
Function 1: The function that can add each expenditure on the homepage and display it conveniently;
Function 2: Help you calculate and count the proportion of your expenditures, so that you know the number;
Function 3: Add a summary of learning methods conveniently at all times.