Now, after a number of tweaks to the concept, the people-rating app finally launched today.

Peeple is available to download for free for iPhones or iPads. The app -- which is not affiliated with the popular review site Yelp -- was created by two friends in Calgary, Canada, and allows users to rate other users in three categories: personal, professional, and romantic.

The idea is to provide "a reference check for the people around us," the creators say on their website. "The Peeple app allows you to better choose who you hire, do business with, date, become your neighbours, roommates, landlords/tenants, and watch, teach, and care for your children."