Freckle tattoos are exactly what they sound like: tattoos that you get that simulate real freckles.
Some people get them to enhance and accentuate the ones they already have, some want some more alongside the ones they already have and some people just like them so much they want freckles - even though they've never had them naturally before.
Now - the controversy with these is that a lot of people are starting to condemn those who choose to get these - why? Because they think they're trying to be someone they're not, or that they're lying to the world...
Normal pricing for freckle tattoos (if you plan only getting them on your face) is anywhere between 80 and 200 dollars (could be less, could be more...).
These kinds of tattoos are usually done in tattoo shops - not usually in cosmetic treatment places.
once you get them they might look like you have chicken pox because they look like little tiny dot-like wounds all over your face, but once they heal they completely blend into your skin.
You can ask your tattoo artist to make them as light or as dark as you want them to be.