Axiom Studios recently released a Unity plugin on the Unity Asset Store which contains social media, In App Billing, Google Play Game Services, Analytics (1), Ad Providers (1), Native Alerts & Notifications, Bluetooth, Email, Messaging, Webview, Media Player, Camera and Sensors with more features like NFC, Google Maps, File Explorer, Voice Recorder and many more coming in the future updates.
Unity is the most popular game engine and many mobile game developers are choosing it to develop games for iOS and Android. Unity 3D makes it much easier to make great looking games. This plugin allows game developers to easily implement common features like in-app, advertisement, social media into their Unity 3D project without having to write separate implementations. With the new AxSU3D Android plugin all native tasks can be done with only one line of code.
The plugin is available on the Unity Asset Store for $20. The studio is going to add many more features to this plugin over time and gradually increasing the price as well.
Currently the plugin only supports Google Play Store. If the company gets enough requests from users, it will consider adding other in-app billing providers such as Amazon App Store.
Currently the plugin includes Facebook, Twitter and Google Plus. The next update will include additions of Sina Weibo (Chinese equivalent of Twitter) and Instagram.