Fast Form On/Off is useful to limit responses and you can also schedule to Set On or Set Off a form to a specific Date and Time.

Add events in Google Calendar™ with Google Meet link in few seconds...(Google Meet™ Support) Fast123.ca David Beauchesne

Students or teachers can create a Fast Quiz. This add-on convert a Sheets to a Google Form and give live feedback by email.

You can create 2x2, 3x3, 4x4, 5x5 teams or pick only one student. You can now create your Classroom Plan. You can also add your Google Classroom in Fast Team.

Configure notifications when other users changes the Google Document.

Fast Keyboard let you add special character in few seconds in Google Docs.

Fast Mail is a merge tool to send email with your Gmail account. Send over 500 messages a day with a specific date and time. Mail merge easy!

Send your document to collaborators at precise date and hour.