Never

Very bad app, its somewhat accurate but at the same time only has 3 seeds that you can look up which are Amazing seed, Example and notch. Good it you are in one of those three seeds. Not worth anyones time. The only things you can find are witch huts, mob spawners, temples and villages. Also you only get that little bit of the map that you see in the picture. Dont get this app unless you want to pay money for it to load the map. If it even works.

Glibraincloud8 about Seed Maps for Minecraft, v1.0