Forget about frictionless sharing. People are turning to anonymous messaging apps to speak freely. We take a look at a few of the more popular mobile apps for secret sharing. Secret is all the buzz in Silicon Valley. Founded by former Google and Square employees, the app has a reputation of spreading tech industry gossip. When a post circulated that Evernote was going to be bought, it made it to tech blogs, prompting a denial from the company’s CEO Phil Libin.