Vectary - Vectary is a free, online 3D modeling tool and sharing platform.
Qlone - 3D scan any object with your iPhone or iPad
Modelo - 3D design collaboration reimagined
Drawing Desk - Drawing Desk Draw Paint Color, Doodle and Sketch Pad created and published 4Axis Technologies for Android and iOS devices.
VR Sketch - A tool for designers to draw inside virtual reality
DWG FastView - DWG FastView for Windows is a lightweight dwg/dxf drawing viewer and editor produced by Gstarsoft, no need of dwg format conversion, vector graph magnified without distortion and full compatible with AutoCAD DWG/DXF.