It's a site where you can go on to test apps and websites. At first I thought it looked fine. I signed up, and weeks later finally got an email inviting me to test something. It was a broken prototype for an app. More than 90% of the features weren't even working. I commented on this, and my review was rejected because it's "normal" for prototypes to not be working. I'm not sure what the developer expected trying to test an app missing almost every feature, though. The uploading feature is also messed up. We aren't really given instructions on how to do much.