My playground currently uses images and sounds, but I'm not sure how to cite it. Do I just reference the URL link or does it need to be very formal, like using MLA 8 format? Also, does using public images and sounds deter my playground? My question is does using public images and sounds negatively impact my submission, since there is always the option to handdraw everything? My app is not focusing on visual storytelling (e.g. a storybook). Please answer my two questions above quickly, since I only have one day left!!!! You may include third-party open source licensed code and/or public domain images and sounds, with credit and an explanation of why it was used.

On the official website for this challenge, Apple says this: If it runs on iPadOS, it must be optimized to display properly on all models of iPad Pro. When they refer to the iPad Pro, what screen sizes are they referring to? I assume that 11 inch and the 12.9 inch must be optomized, but what about the 9.7 inch iPad? Do I need to make sure my submission supports that iPad model as well? It's not being sold by Apple but it can be built with the simulator in Xcode. Please help me as soon as possible. The challenge is due in about two days!!!