The pro version adds support for online cloud backup and netplay. To use the online cloud backup support, go to Settings and then Data.
All necessary cores and plugins are included. There are, however, many caveats.
* There will be issues with specific games or devices.
* Not all games work, but most do.
* For games that do work, you may need to try different video plugins
* Not all video plugins work with every device and issues can occur.
* There are many missing translations. It might be better to stick to English.
The netplay server is only supported in the pro version. To play games over the internet, a router with UPnP is required and connected to the router. No UPnP is required to play games locally on the same WiFi network.
For support, visit: /r/EmulationOnAndroid or www.paulscode.com
Here’s a great guide: http://www.paulscode.com/forum/index.php?topic=15692.0
Here’s how to change controller assignments: http://www.paulscode.com/forum/index.php?topic=15812.0
