Like the idea of Netflix's no-nonsense internet speed test? You don't have to fire up a web browser to try it. Netflix has released app versions of its Fast.com test for both Android and iOS with the same ultra-minimalist vibe as the web version. You only have to start it up to get a sense of whether or not you can play that 4K House of Cards episode. You don't really need the app, but look at it this way: if your internet speeds are dodgy enough that you're launching Fast.com on a regular basis, this might save you some precious time.