Apple has announced that Apple Podcasts currently hosts more than 550,000 active shows, according to a new report by TechCrunch, with over fifty billion episodes streamed since the service launched with only 3,000 programs back in 2005. The report also notes an exponential increase in recent years, from only 10 billion in 2016, and 13.7 billion last year. Apple also revealed that the podcast Stuff You Should Know has become the first podcast to cross…