If it's for iOS I presume it's paid? If so, giveaways can get people to install it who wouldn't have if it were free. The downside is that most won't become a

If it's for iOS I presume it's paid? If so, giveaways can get people to install it who wouldn't have if it were free. The downside is that most won't become active users, but if you give away enough copies, you'll get plenty.