Hi.
I have a game www.halfchess.com on play and app store. It currently has only Facebook login .
I am seeing low conversion of download to login ratio .
I am considering deprecating Facebook login in favour of Google login for android and iTunes login iOS.
Deprecate because it's hard to keep multiple login options and when all users use either Google or iTunes login, I will be able to provide them a leaderboard very easily (using services on the google play platform).
The other option is to not deprecate, but prompt FB users to additionally do a …