Description
Google Play statistics suggests that a lot of people uninstall the app just after installing it.
I suspect that the biggest blocker is the login screen. Most people probably give up at that step.
Proposed solution: Allow people to browse Commons, and even upload pictures, without the hurdle of choosing a username and password.
The app could show: Log in with existing account / Create an account / Continue without an account
"Continue without an account" would actually create a random name and password, and store them in the app's local database.
Uninstalling the app would mean the account is lost forever. Or we could have a small dialog that shows the username/password that have been created.
I am not sure whether all of this is possible (for instance account creation might require solving a captcha which might be difficult to make the user solve), but it might be worth considering.