Rpg vx mobile rgss..??

Hi. I am currently trying play a game through this app. I know that it is compatible because many people posted on blogs that they are playing it with neko player. But when I tried to play it, it said that the rpg vx mobile thing is missing and sent me to the posting place thing. I downloaded the rpg maker ace(?) And it is already in the folder, but it doesn't seem to work. I downloaded about five times, refreshed, still doesn't work. I did put it in the folder through the app zipper. Keeps on saying that I am mission rpg vx mobile rgss. I am using Samsung galaxy s6. Is there any way I can solve this problem?