Fritzs Rx is a free application that helps connect you to your local Fritz Pharmacy. Additionally, we also have an online interface that offers even more features than the app. Refill requests submitted using the Fritzs Rx app or through the pharmacys Internet refill portal appear directly on your pharmacists screen! *Submit a refill request using the prescription number and patient last name. *Receive an immediate response confirming the validity of the prescription number. *View your last 12 months profile.