No. When you sign up for G Suite, 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 launch a Hangouts video meeting from your inbox or calendar. Using these tools together improves productivity and gives your business the most value. However, you are welcome to purchase the suite and only use the services of your choice.