Google Code-in

Identify and test apps and other systems that would allow to remotely provide assistance and guidance from one smartphone to another smartphone, in a trustable way among users that otherwise do not know (and should not trust!) each other. Typical examples might include the remote assistant and video-chatting functionality of https://play.google.com/store/apps/details?id=com.mi.vtalk or https://play.google.com/store/apps/details?id=com.koushikdutta.inkwire or https://play.google.com/store/apps/details?id=com.projector.screenmeet

Prepare a document describing the pros and cons of using the various systems you have investigated and tried out. Create screencast youtube videos showing how the tested systems work.