ScorchCAD - 2D / 3D CAD *Mobile only*
http://www.scorchworks.com/ScorchCAD/scorchcad.html
https://play.google.com/store/apps/details?id=com.scorchworks.scorchcad&hl=en_US
File Support:
Pros:
Cons:
Runs on:
Images from http://www.scorchworks.com/ScorchCAD/scorchcad.html