Only owners of Premium or Plus subscription can create more than 10 categories of expenses.
Swipe the screen down. You will be taken to statistics.
Click on "more" in the right top corner.
Select the Income tab.
4. Click on "+" Create a category. 5. Enter the name of an income source, choose an icon. If desired, set the budget (the sum which you plan to receive). 6. Click on the "Create" button.