The folks at FXHome and the creators of Hitfilm just published an awesome app for AR enabled iPhones which can track camera in real time and export to Blender, Hitfilm and AE. :
Blender vs. HitFilm Pro Comparison
Hitfilm Tutorials | ProductionCrate
Blender to HitFilm: Blender VFX course Masterclass - FXhome
Hitfilm Express For Beginners - JAMES WOO
Blender to HitFilm: Blender VFX course Masterclass - FXhome
Justice League CYBORG VFX for FREE | Blender + HitFilm Express Tutorial - YouTube
Make a 3D CAMERA TRACK for FREE | Hitfilm Express + Blender Tutorial - YouTube