Google has released a new app that allows 3d modeling directly in VR.
Blocks, available for free for HTC Vive and Oculus Rift, is called intuitive and pretty simple even for creating complex shapes (all in trendy colorful low-poly style). It has six tools: shape, stroke, paint, modify, grab, erase, and can be used together with Google Tilt Brush that was released last year.
Projects can be exported not only as a standard *obj files but also as *gif to share online.
By its functionality, the app can be compared to Oculus own software for VR-modelling – Oculus Medium
More info on Google Blocks