Each tool does one job and then forgets you. That is fine for a caption or a crop, and it stops being fine around the point where you are keeping a calendar in a spreadsheet, the photos in a camera roll, the approvals in an email thread, and the numbers in six different apps.
Maeve is where that whole loop lives instead: one calendar, one composer that adapts the post per platform, a media room that remembers where a file has been used, approvals and client review, publishing to eight platforms, an inbox for the replies, and the report at the end of the month.