Lenny Khazan

No ICO, no bullshit. CryptoBets is a fun new way to bet ETH on events using smart contracts: bet on sports, movies, politics and more. Each bet has two sides. No bookies, no odds; the losing pool is split amongst winners. Simple, sexy, fun, and safe: the smart contracts that process bets and pays winners are 100% public. Augur in our crosshairs.

Contra is a slick app for voicing your most honest opinions. It's pretty simple; you pose a two-sided question and get thoughtful responses and votes from people all around the world. Be careful though: it gets suuuuppper addicting because of the debate mechanism. I've personally spent a few too many hours on it, just trying to prove my point!