I have an app on google play over 5000000 downloads. And 20000+ downloads every day. When the designer changed the app icon to new good one ,the daily download decreased from 20000+ to 5000- . I don't think it's not good icon. I think may be there is a marketing strategy after icon changing google play changed app position on google play. Any idea about this?
Old Icon
New Icon
I think that the main reason is people knew the product. If they start looking for it now, they see something that they don't know as it has changed and will not download it as fast as before.
If everyone is used to the icon, your downloads will increase.
There is no ranking part that depends on the icon, so as I know.