Andromeda is a system that can easily turn any 3d model into a AAA hologram effect, even animated models. Two other systems are also included for 2D Holograms and flickering monitor effects. All systems have custom editors to tweak every setting to create the exact hologram effect to suit your needs. Andromeda looks great, performs efficiently, and can pretty much find a place in any game.
Best of all Andromeda works with Unity Free and on Mobile.