Look, we all know our phones are killing us -- in particular, those pesky apps we can't stop downloading. Pretty much everything you put on your phone is collecting your data and selling it to the highest bidder, and we all know what Facebook and Twitter are doing to the world. But what if your app was literally killing you? Such is the crux of Countdown the new STX Films horror movie about a mysterious app that tells you exactly how long there is until you die -- then kills you and feeds on your soul. Ah, technology, ever a wonder. …