sorry buddy, but when you have 3 different displays that are 3 different brands and 3 very different levels of quality - The only way to get them to look somewhat similar is with calibrating software/hardware.
definitely helps out a ton with eye strain, ive been using it for 3 days now and i am liking it so far i could also go for an auto off setting while certain applications are open or running. its easy to forget this thing is on after using it a while