either
plus has a few additional images in gallery, and that's all, as I recall.
furthermore, if you play the plus version and save the game, that save will not work if you download a non plus or normal update, so it's up to you to decide which normal version with normal saving will work with a normal update but you won't have the gallery that the plus version has, vice versa download the version plus its saving will not work on the normal version and therefore you will have to wait for an update of the plus version to be able to play from the point of your saving ... I hope I explained myself well that everything is clear