It would be very useful if Collector could have the functionality to show a table of data collected, so that users in the field could sort by an attribute (e.g. species name) and check and correct or edit observations while offline. We are using Collector for bird surveys, and we split into two teams, each recording observations with Collector offline on an Android tablet. It would help the two teams to determine overlapping and repeat observations if they could view a table of the data right there in the field while the observations are still fresh in their minds.
It looks like several other Collector users have asked a similar question about the ability to view an attribute table, but there are little or no answers. Would be great to get some response on this!