Keeping your applications up-to-date used to be a bit of a hassle. The answer may just be the Mac App Store for your desktop which launched last week.
The actual process of updating OS X software had already been made extremely easy for developers and users alike with the widespread use of the popular Sparkle framework but having one place to check for anything to download kind of like the existing system Software Update was an often made request.
Of course, all of this was before the App Store arrived on the scene. Not everyone will be a fan of a centrally administered store to get their applications and there may well be an anti-trust lawsuit somewhere down the line for Apple but the numbers certainly looked pretty convincing for Evernote.