As an anthropc, shouldn't Momo be always be connected to the Internet, or at least have a ready connection? It should be all of a simple action to google pretty much anything.
Among the QC-verse AIs, there's a noticeable bias toward in-person. human-like interaction. Momo at least has built-in GPS (and we can presume most other AIs do as well; even in our universe the hardware is cheap and only about the size of a thumbnail), and Momo and May "text" each other when they're not in the same place (complete with personalized emojis).
And they seem to be assigned phone numbers and have built-in cell phone hardware -- there was a mention of Claire getting Bubbles' number before Marten did, and May and Momo have made phone calls to their human pals without any extra devices (using the very human hand to ear gesture).
But generally the AIs seem to avoid using their networking capabilities unless there's a need, even when there are no humans around. Probably because you can communicate a lot better with nonverbal cues mixed in (facial expression, gestures, etc. depending on hardware). A face to face conversation can be pretty darn efficient. And Bubbles has talked about the desire to act human-like in small ways in order to fit into human culture a bit better.
Plus, in our universe, going over your wireless data limit can get stupid expensive, and it's likely much the same in the QC-verse.
Also:
1) Momo has tear ducts? I suppose humanoid AIs would need some sort of lubricating film for their eyes...
2) Do May and Momo know about Faye and Bubbles yet? I mean, May spotted that ship pretty early on, but I sense much ensuing comedy when they visit Bubbles' AI hair salon... dis gon be gud.