Some companies propose to collect points that the buyer can exchange then for an item proposed in a list among the catalog. Allegro proposes a different system: when people buy through the Allegro application, they will collect coins that will be exchangeable for discount coupons. One coin is similar to one PLN (Polish Zloty New, it is the official polish currency since 1994). The buyer can save up to 120PLN per month and buy whatever they are interested in.