Foursquare without all the bells and whistles. Great example of minimalism in product design, this app manages to do one thing extremely well and that’s checking in, nothing else. But this also makes it many times faster to use than the official foursquare app. I also love the black and white UI design that really helps the usage and speeds up readability to further make checking in as clear and effortless as possible.
http://itunes.apple.com/us/app/checkie/id382356167?mt=8&ls=1