Hi,
what do you mean by sell conversion? Are you selling in app items? IS this to get rid of ads?
First I want to thank you for sharing your stats , I did get the idea of an app that is found organically on google play and get a lot of attention.
I see that we can not do much on what the statistics have to say ....you lose about halph of the users first day
, You get from 20 to 30% first time installers, from them about 1% decide to pay for some goods within the app.
I do not know if there is place for more ? If you do not measure your app performance with other apps then it is very hard to understand it the app already is making any real progress.
Then other thing that bothers me is crashes .... it seems you can not live without them , some of them are inevitable and there nothing much to do ....
I see constantly up to 5 crashes / day on 150 installs