Shareberry is an Android app that makes it possible to share songs to Raveberry.
In the first picture you can see the Shareberry icon in the 'Share via' menu of android. When chosen, it will send a request containing the shared link to Raveberry, where it will be queued.
In the second picture you can see the configuration page of Shareberry with the default settings. When sharing a link, it will try the given urls in order until Raveberry could be reached or all urls have been tried.
A prebuilt apk can be found here.