When we move money from one account to another we are not generating incomes or expenses, but simply doing a transfer. And there's a specific functionality for this kind of transfer.
1. There are two ways of accessing the Accounts menu:
On Mobills main screen, by tapping "Accounts Balance":
Or by tapping the three dots ("More") at the lower right corner of the screen > Then at "Manage", tap "Accounts":
2. On the Accounts screen, tap the three dots at the upper right corner, then tap "Make a transfer":
3. After that, add the required information and save it by tapping "Save":
Done! You've made a transfer between accounts!