Quasar has released a remote control application for their Rainbow 2, and Double Rainbow lights. The app gives you full 16-bit color control over the lights. The app is available for Apple users with iOS 15 or later.
You can find the app here.
If you’re looking for Quasar lights you can find a verity of them here.
Quasar Science Rainbow 2 Linear RGBX LED Lamp 2′ $500