Trivia: In its early days, Shazam was a call-in service, not an app!

Shazam's meteoric rise to fame is nothing short of amazing, and like a select few other apps, it's won itself an eternal spot in our hearts (we like you too, SoundHound). But success didn't just come overnight — the company earned it through persistence and relentless innovation over the better part of a decade. In fact, most of you probably didn't know what Shazam's purpose was when it launched all the way back in 2002 in the UK. Yep, it wasn't an app.

It was a call-in service. You read that right — you'd hear a song whose name you'd like to know, and you'd dial 2580 and let Shazam's servers listen to an excerpt of the song (up to 30 seconds-long) and then have them hang up on you. Just like that. Thankfully, this wasn't a scam, and Shazam's computers would then send you an SMS message with the name of the songs, provided they got a hit. Later, in 2004, Shazam also launched in the US on AT&T's network. 

It was years later, on the 10th of July 2008 that Shazam launched as an app on the Apple App Store, and then, in October, on the Android Market (the ancestor of the Play Store). It's what we use to this day, though much improved in terms of functionality, success rates, and design.

Funny how things work out, eh?