This one in particular drove me up the wall when they started doing it, because, for at least a year, the Yelp app was so buggy (on my phone at least) that it was essentially unusable. I wanted to keep using Yelp on the web, but because it was so crippled I switched to using Google Maps as my default review-searching app. The Yelp app works on my phone now...but I never reach for it.