If it stops half way, it most likely means you need more space on your phone if I were to guess. Does it say any specific error when it stops?
How much space do you have available on your phone? I just tried it myself and was running into the same problem, but after I freed up about 700 MBS on my phone it worked without a hitch. The game itself isn't a big file, but I guess Android requires a lot of extra space. Let me know if that works for you.