Current Balance - that's the balance displayed in the field - "Balance".
That's the balance calculated considering all your transactions ( both cleared or not).
Cleared balance is displayed in the cell "Cleared balance" .
As our app's work based on a principal of a real checkbook and some transactions should be approved by the bank before the amount is subtracted from your balance. Despite of the fact that this money formally are on your account you can't use it as it doesn't belong to you any longer.
That's why while adding a new transaction in the field Cleared you may make the transaction automatically cleared or manually confirm it (tap on the check mark to approve a transaction) after receiving your bank's approval.
Thus Cleared balance - that's your account balance considering only cleared transactions.