2. Can I purchase individual Google Workspace apps?

No.

When you sign up for Google Workspace, you'll gain access to a set of integrated apps that work together seamlessly. For instance, you can receive a message in Gmail and instantly convert it into a calendar event. When you make a comment in Docs, Sheets, or Slides, collaborators automatically receive email alerts. With a single click, you can join a video meeting in Meet from your inbox or calendar. Using these tools together improves productivity and gives your business the most value. However, you're welcome to purchase the G Suite and only use the services of your choice.