Uno is an interesting and diverse game for phones, which is an online version of the well-known card game UNO. Here, you can play matches, both against friends or strangers, to earn currency and get some trophies to reach a better league. Using Uno gift codes, you can get even more currency to participate in matches or tournaments. In this game, there is no energy that you can spend to play a match. Instead, your ticket to play is a steady bet on currency that you can recoup after winning.