I use the Grip-iT with my PS4 controllers, and the GelTabz on my PS3 controller.
Both brands are made for XBox 360, XBox One, PS3, PS4, Wii, and Wii U. Whichever one you choose, just make sure you pick up the correct one for your specific system.
This comparison video should give you some good information about them, and also show you what each one looks like: