Workflow = 1 Google Form linked to a spreadsheet. You can create as many workflows as desired with a Form Workflow Plus subscription but are limited to one workflow per spreadsheet.
Request = a Google Form that has been submitted for Approval thru Form Workflow Plus. It can have as many approval steps as desired
Requester = a person who is submitting a Google Form for Approval thru Form Workflow Plus
Reviewer = a person who Approves a Workflow Step
All Form Workflow Plus plans are unlimited in Workflows, Requesters, and Reviewers.
Our plans are based on the number of Requests that have been submitted for Approval.