If you're an independent developer, small dev team, or student that can't afford to comply with the p5play Professional License Agreement, you can apply for a p5play p5play Novice License.
Using the same email you used to sign up for a p5play membership, send a message to info@p5play.org with the title "novice applicant". In the body of the email write a description of how you plan to use p5play commercially. If you're approved, you will be notified via a response to your email.