Today I tell about a good concept like as social connectivity. it’s name "whats-app" - it’s very simple concept to select any pic, video, document file, location, contact etc. and send your friends . its available on play store. its design and layout like as our contact list and very simple. every one use this simply.
Today its very useful for workers so that they send their working design(interior), office worker send their document file, we share our all personal pic, video, contact etc with our family and friends .it’s almost free. and I also use this like a interior design sendingetc.