Voted Best Answer
Apr 10, 2015 - 11:26 PM
1. Paid advertisement of your app.
2. Paid installation of your app. Some services like sponserpay and trialpay offers such services. They will charge some money to you and they will spilt the money with users who are installing app.
3. Promote your mobile app on social media like facebook.
4. Make some website or blog owner to review your app.(There are paid as well as free bloggers to do this.)
5. Grab a reporter and tell him how important your app and he/she may pbulish an article about your app in news paper; either free or by charging some money.