How to got 5m download on Android application competition is very high

Answer 1

quality will rank higher? same concept as you tube?

Answer 2

Make a good, useful, easy to use and beautiful app. This is the recipe for a viral app.

Answer 3

Quality sells, for sure. They key is the relation of quality vs price. It should be fair. Take SL as an example, the servers sometimes go down, but hey, its free and the positive outcome bypasses the negatives, so I'd say SL is a good app.