As of right now there are 4 ways to broadcast your beautiful face on Mobcrush! Here are the 4 ways with a brief description on whats required and a direction to where you can learn more on how to do it.
Android; https://www.mobcrush.com/support then go to Android and then broadcast on Android. You will need to have the most updated version of Mobcrush and also have Android OS 5.0 or higher.

iOS ReplayKit (stream from iPhone or iPad); https://www.mobcrush.com/support/ then go to Streaming with iOS 10 and then to How do I stream. Make sure you have the most updated version of Mobcrush and also have iOS 10.0 or higher.

Mac OSX app; https://www.mobcrush.com/support/ then go to Mobcrush 101 and then Mac OSX app Streaming Basics. Make sure you have the most updated version of Mobcrush on the computer and have your mobile device plugged into the computer. Also have iOS 10.0 or higher on the Mac desktop or laptop.

Windows app; https://www.mobcrush.com/support/ then go to Windows and from there go to How do I stream using the Mobcrush Windows App. Make sure the most updated version of Mobcrush is on the computer and the app only mirrors the phone screen. You will have to use a 3rd party app to broadcast any mobile games on Mobcrush.