Here is the feature set that makes this app great – 3Dskope Review

First, you can load models (ply seems to work best) into iPad local storage from your desktop. Second, you can load and play with models that are an order of magnitude larger than ANY other similar app (e.g. 217MB vs 23MB). Third, models load faster, much faster, with a % counter so you know what’s happening. And fourth, the clip feature is at least as well implemented as any other similar app. The only problem, and it’s minor, is that if you pack an obj/mtl into a zip, and load into local storage, when the model is decompressed, the mtl will not be loaded along with the obj, so colors are lost. Texturing is apparently a paid feature, which is fair, and the docs announce this clearly. Even as a free app, my high rating still stands, nothing I’ve discovered comes close at any price.
Review by kcrossen on 3Dskope.