Certify'em lets you leverage the power of Google Forms to create online certifications and email custom certificates to exam-takers!

Form Ranger allows you to populate multiple choice, list, checkbox, and grid options from columns in any Sheet.

formLimiter shuts off a Google Form after a max number of responses, at a date and time, or when a spreadsheet cell equals a value.

FormRecycler - Merge multiple Forms into the current Form with 1 click. Also recycle form questions from a Form in your Google Drive to the current Form.