Aviate Launcher has had quite a history. It started out as a startup project by a handful of developers before Yahoo! bought it out a couple of years back. Like EverythingMe Launcher, Yahoo Aviate has some contextual elements to try to deliver the apps you need when you need them based on location and time of day. It also comes with a sleek, simple layout along with Smart Stream which is kind of like Google Now. It’s a powerful launcher and quickly becoming a go-to solution for a lot of people. It’s also totally free.