CA$HBACK APPS for receipts in EUROPE?

What are the best CASHBACK apps that pay you for receipts in EUROPE.

A lot of people recommend cashback apps here but all of them are for US residents only,
THAT's why I need to ask, are there cashback apps that pay for receipts in EUROPE (If more specific, EU, Poland). If there are some apps that you know please comment the name of link.

Thanks