To further narrow the scope of this review, the contenders were limited to web-apps, which offer the most accessibility by being, you know ... on the web. Thus, MockFlow, ProtoShare, and HotGloo were chosen as the challengers. They’re all in the same weight-class in terms of features and are, more or less, all centered around creating interactive website wireframes. So, now that we have our picks, let’s get into the ring.