Been using eDrawings for a couple months now. It’s basically a CAD viewer app that lets you open and share 2D and 3D design files. Pretty solid app if you’re into engineering and product design stuff.
Here’s what you do: you can load up CAD files, zoom and pan around, see different views. There’s also the ability to send files via email, which is pretty cool. And there are drawing sheets and exploded views – took me a while to figure that out but it’s useful.
Look, if you’re an engineer or designer, you’ll probably like this. It’s not perfect – the interface can be a bit clunky at times – but overall it does the job. Worth checking out.