Ask HN: Why are there no good happy hour apps?

Happy hour is a frequent event in many of our lives, and yet I can't for the life of me understand why it's so difficult to find an app or website that has aggregated data about happy hours nearby, including place, time, and happy hour menu and prices. Yelp provides very limited data (basically a yes or no but no hours or menu for HH) and the first result on the App Store is an app that hasn't been updated since the iPhone 5 was released!

Of the millions of apps in the App Store, you'd think there would be dozens but there aren't. I scratch my head wondering how something like this hasn't been built yet.