Difference between kiss cut & die cut stickers
The kiss cut and die cut stickers are exactly same when peeled off from the backing including the material and finish of the sticker.
In die cut stickers; the sticker along with backing paper is cut to the shape of the sticker while in the case of kiss cut the backing paper is slightly bigger than the sticker size making it easy to peel off and apply the sticker onto the desired surface.
Die cut stickers:
Kiss cut stickers: