It isnt just the meta-human detecting App that Earth-2s Harrison Wells has invented. No, no, far from it. In fact, this alternative version of Wells is actually responsible for creating that worlds meta-humans in the first place. No major details or specifics are given on just how Earth-2 Wells did such a thing, although Jay Garrick confronts Doc Wells and accuses him of murky goings-on beneath S.T.A.R. Labs. So even in a completely different timeline and alternative universe, it was a tad shocking to see that it was again Harrison Wells who was the man responsible for creating the meta-humans that are now running wild.