I wish you would switch to using Adobe Xd instead of Photoshop for your app designs, flows, layouts, etc. Also, you can prototype in Xd. Your students could download your designs and use them as a starting point for developing their own app designs, just like we do with the course projects we download. You will like Xd. It's not hard to learn. And, a free version is available with iOS and other platform elements. It will increase the value of your courses while making your life easier.