Yes, you can. Dobovo offers a reservation on arrival day without prepayment.
Apartments whose owners have agreed to a reservation without the deposit are displayed in the list with a label 'Without prepayment'.
Just as an exception, you can always ask for confirmation of your reservation without prepayment on any date. If the owner agrees, you will receive an order confirmation and contact information of the owner.
Please note that making a prepayment in advance gives you guarantees for accommodation in the apartments.