You can create screenshots to share with your friends or colleagues.
Use the Camera icon from the menu to choose between a regular screenshot and render of different quality.
Tip: Picking the Draft quality won’t spend your render slots but will create a screenshot that can be shared. Always create a draft first. If you're fine with it, you can always convert it to HD from the "My renders" section.
Check out that article on how to create renders using an Android device.