Is there any statistics, what percentage of users who download the application buy it?

Question

Google Play

For example, out of 100 downloaded 2, as a rule, or how much is there.

Answer 1

fork 0.1 - 10%
1% is already good. 3-4% is very good. Above could only single programs. 10% saw only 1 time.
Again, on what sample? with 100 installs, 15 sales is not an indicator. Statistics starts to work on large numbers.

Answer 2

I also tend to believe that somewhere around 0.1-0.5% of all those who installed it. Well, plus or minus. Because not all those who install it open right away :) some even forget after 15 minutes how it appeared on their phone.