Last week we told you how The Omni Group released OmniKeyMaster, and app that works by searching your Mac for Omni apps from the Mac App Store and then lets you purchase the newest version from the web at upgrade pricing. At the time, I said ​OmniKeyMaster was a "clever way to get around the fact that the Mac App Store doesn't offer upgrade pricing -- something Apple will hopefully change in the future."
As of today, OmniKeyMaster is no more. The company announced that OmniKeyMaster violates Apple's Mac App Store policies. Writing in a blog post, the company said: