Now that I have some time I clipped out Grimmi and Aerobuddy voices for comparison purposes. My opinion still stands that they are the same but I could be wrong.
How Grimmi normaly sounds
How Grimmi Sounded during day 6 of her subathon
Aerobuddy
Aerobuddy sounds like its inbetween the first two clips, I'm convinced its her based on how she talks.