I’ve been using LaunchBar on my Mac for quite some time. It hasn’t changed much over the last several years, and, for a while, I don’t think it was very popular, as Mac apps go. But LaunchBar 6 was just released, with a bit of an interface refresh, and it’s getting some attention, including a good review on Cult of Mac, and a lengthy and useful writeup by Shawn Blanc. I just installed it, and paid the $19 upgrade fee for it. That seems pretty reasonable, given that they haven’t done a paid upgrade since 2010. I’d recommend it to any Mac user who likes the idea of being able to quickly launch programs without having to use their mouse or trackpad.