"Built With Interact Quiz Maker" in the bottom right corner

Lite quizzes are not made into transcripts on the interact site and are only shown where you show them. 

You can add your own logo in the bottom right corner

Or if you choose you can have no branding of any sort on your quiz

Is the same as growth as far as branding is concerned, you can choose to put your logo or no logo, but there is zero interact branding anywhere on your quizzes and they will not be made into transcripts.