The concept of this app is earn money by trying your luck to the given chances by them. So, I downloaded this app because my friend told me to download it. But when this open this app firstly I did not understood what to did in it but after sometime I got its all the features and functions So, I put my given chances in it but I never won anything in it.In Skrillo app is very difficult to earn money because it is fully depend on your luck, So I did not suggest any one to downpoad it.