3000 downloads YTD! 700 email addresses of users; making $$ a month from in app purchases.
I have a technical background from the advertising industry and in monetization on mobile.
There are several monetization loops that can be employed on iOS. If you already have the tracking app implemented on other platforms or is cross-platform compatible, you can achieve similarly successful yields from Android with a different set of best practices.
If you point me to your app, I am happy to review it and have detailed follow-up discussions over clarity.fm.