Hi Nicos, I am the developer of this application.
This application is based on a deep learning attention model which basically either works or not.
With the provided demo you can test with your images if it's going to be helpful or not with your own images.
Ah, I see that you mentioned that you bought this about a week ago. Maybe you should have used the demo first.
In any case, I'm guessing you will be asking for a refund, if that's the case, here is all you need to know to do that: https://itch.io/t/129454/how-are-refunds-handled