In order to open it, you do not have to enter a code for the OK app. The reason for this is that an unauthorized person, without knowing your OK code, can not pay via your OK app. In addition, in many cases the access code of the mobile device already protects the OK app.
You must see it as your wallet. In your wallet you will also store all your bank, identity, customer and savings cards. The advantage of the OK app is that you have not lost the money in your wallet because it requires the OK code. Nevertheless, it is recommended that you always freeze your OK app in case of loss or theft.
[Learn more about blocking your OK app]