Shazam was one of the first applications Apple decided to specifically feature in one of those “There’s an App for That” ads, and it’s no doubt one of the biggest reasons Shazam has been downloaded so many times. The company behind the app, Shazam Entertainment, claims to have over 20 million users. I’ve been one of them for many months now, but a few days ago I accidentally erased Shazam from my phone. No problem, I thought, we’ll just find it again in the App Store.