If you are iPhone users, iPhone profile is easier to do the facial mocap, because Face ID is driven by infrared, it means that it is light-independent, less environment interference.
What devices does iPhone profile (i.e. Live Face profile) support?
https://kb.reallusion.com/Product/52891/What-devices-does-LIVE-FACE-profile-support
AccuFACE is suitable for webcam users, and there is a specific function – Video mocap. So you can capture in real-time, or capture with a pre-recorded video.
Pleaes note that AccuFACE requires Nvidia RTX graphics.
More info about supported mocap equipments: https://mocap.reallusion.com//iclone-motion-live-mocap/gears.html#gear-comparison
Kindly refer to the FAQ:
https://kb.reallusion.com/Product/53172/Which-facial-mocap-plugin-should-I-choose
The animation recorded from facial mocap plugin will be stored in the Expression track, instead of Viseme track.
Here below is an additional information for AccuLips users.
For now, since iClone 8 only supports English dictionary. Users can edit to add own dictionary. Kindly refer to this manual page:
https://manual.reallusion.com/iClone-8/Content/ENU/8.0/50-Animation/Facial-Animation/Adding-Visemes-to-Dictionary.htm
And with AccuFACE, it supports multiple languages, see demo video here: https://youtu.be/WCzHLSss_xU?si=Y3uiKjlqlNBwlGQ5&t=112
It means that AccuFACE resolves the issue that AccuLips language limitation.
More tutorials for AccuFACE:
https://courses.reallusion.com/home/iclone/facial-mocap?v=getting-started-with-accuface-|-iclone-8-tutorial
https://www.youtube.com/watch?v=x3ozuybmvfE