Worth it for disco mode alone! There’s a ton of presets here for different lighting settings, all of which are great, but really it’s worth the price just for the excellent disco mode. I’ve used other apps trying to do the same thing using my phone mic, but this beats them hands down. It’s triggered by whatever’s going through your sound card so it’s very fast and highly configurable. Excellent app. I wonder how I can install Hue lights in the floor so I can go full Travolta!