Okay, real talk: How many "free" apps are currently sitting on your phone right now? Spotify, Duolingo, Canva, that meditation app you downloaded at 2am during a bout of insomnia? And here's the kicker—most of them are technically  free, but let's be honest, you've probably paid for at least one of them at some point. Welcome to the freemium model, the business strategy that's basically everywhere and is surprisingly genius when you really think about it. So What Even IS Free