Hi Robert,
> Is there a way to format the surveys for an iPad?
Using the Survey123 App on iPads works the same as on iPhones. There is nothing different.
> Or is there a way to format groups side by side instead of scrolling from top to bottom.
This is currently not possible. Please submit an enhancement on the ArcGIS Ideas site, ArcGIS Ideas
> Or, another way to ask, Is there a way to maximize the use of the screen real estate of an ipad for surveys.
Please take a look at some of the appearance options to format survey questions. Especially the select_one and select_multiple questions. Some of these options may help you optimize the larger screens provided by iPads.
Appearance—Survey123 for ArcGIS | ArcGIS
Hope this helps,