Critizen

Critizen is an application that allows you to critique any business, brand, or establishment very quickly and easily, directly from your Android device. It also gives you the chance to share your opinion with other users and friends.

The interface of Critizen automatically shows you a stream of the latest critiques from other users of this application. Here, you can see the complaints (or compliments) that other users have posted and, more importantly, you can rate them. So, if you agree with some critique, you can support it so that it gets more relevance.

Of course, besides being able to see the complaints from other users, you can also write your own. You have to use the application's search tool to find any brand or establishment that you want to complain about. Once you find it, you just need to write a short review, giving your opinion, and then mark a scale that goes from 'furious' to 'happy'.

Critizen is an interesting application, as it provides a space for you to complain about businesses, brands, products, and establishments and to tell other users what you have to say. The only problem is that it requires you to identify yourself via Facebook in order to make your complaint.