In other words, anti-Yelp.

Writing reviews? On your mobile phone? Sounds boring to us, and we know it sounds boring to you. Download Bitter, the dead simple way to rate places around you.

Bitter is like a “one bit Twitter” in a sense because places you visit are either good (thumbs up) or bad (thumbs down). There are no long-winded reviews to read or 5-star ratings.