The team at Automattic, the company behind WordPress, were working for a photo app for Gravatar and had fun taking selfies and sharing among themselves. This lead to the creation of the Selfies app which was silently released on the Google Playstore without any announcement on purpose to see the public reaction.
When starting the app for the first time, the user is asked to take a selfie, add a caption, photo edits and filters, and post it to the network. There is a public stream of selfies in the app and users can respond to selfies with a captioned image of their own. Furthermore, users can share the selfies to all other social networks such as Facebook, Twitter and Instagram. Moreover, the app is in its yore stages for now and the team plans to add more features such as a filter system to only show high quality content.
In contrast, Selfies is a part of Gravatar app, but the team was more focused to make it as stand alone app. Apparently there was a poll in the Gravatar blog on which platform should receive the app first and the highest hits belonged to Android. Availability for IOS will depend on how the app does in Android and users are asked to send their feedbacks of the Selfie app for further improvement and suggestions.