SwayBlog

Drunk driving is serious business, so Charles Yim set out to make the world a better place by creating a breathalyzer for your smartphone. The app helps the potentially inebriated user to make more informed decisions, and it partners with local services, like cabs and hotels, to keep you safe. No stranger to business ventures, Yim was the first contestant to get backing from every Shark in the tank, and making over $1 million is sales within three months. Yim went on to develop a wireless version of the device as well, earning another $10 million.

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