Do not buy this app!
None of my models open correctly, if they open at all. Very disappointed, $10 down the drain. Much more effective to save .skp file as a .kmz and use Cubits or another viewer. Not sure why Trimble put out such a product. Does not come close to functionality of PC-based program. Im using on an iPad2 w/64 MB memory. Maybe a newer machine can operate this app.
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SketchUp