RealtimeBoard is the best whiteboard collaboration app found in the market. You can avail this without any charge with some features or you could improve to the services for higher optimal experience. It is available with additional collaborative features which surpass most of the challenges experienced by normal whiteboards.What is an electric whiteboard?
An electronic whiteboard is a software program that runs on the computer and resembles a whiteboard. A user, such as a teacher, could draw on the electronic whiteboard within the program, and that image is distributed to multiple computers.