Chris (mettle) shows one simple way to add 2D text to 360 footage. He uses SkyBox Studio in After Effects.
For 3D text onto 360 footage watch: vimeo.com/140350806
He uses SkyBox Converter and SkyBox Viewer to do this. Converter and Viewer are 2 of the 4 modules available in SkyBox Studio, 360/VR production tools for After Effects.
360 footage courtesy: visyon360.com