Cinnac uses its community to rate your photos
(Digital Photography Review)

If you have trouble deciding which of your images to include in your portfolio or a gallery the new cinnac app might be what you have been waiting for. Cinnac is a social network for photographers that uses means-tested ratings from its community to help you filter your photos. In the app you can upload so-called `mini blogs` which are sets of 20 photos. Other users are then presented with pairs of images from your set and have to vote on their favorite. As an end result you receive a crowd-generated rating for your images and a ranking, showing you which of your photos are most popular with the cinnac community. Cinnac is still pretty bare bones but offers an easy and intuitive `tinder-style` user interface and could turn into a genuinely useful tool once the community grows large enough for reliable ratings. Cinnac is now available to download free of charge in the Apple App Store or on Google Play.