19-year-old John Meyer dropped out of a prestigious university computer science program to work full-time on his tech startup

His parents weren't happy at first. He was attending NYU where his mom is a professor, he said.

But they eventually came around to support him, because they had to admit: Meyer is already a successful independent computer programmer. He's been writing apps since his freshman year in high school, 2008, after teaching himself the programming language Objective C.