How to remove ads on iphones from YouTube videos imbeded in an app.

I have an app that has short 15-25 second YouTube videos imbeded into it. These are non-monetized, unlisted videos, as our channel is not large enough to have capability. They have no music or graphics that could be copyrighted. No copyright claims on these videos. Our ios users have ads pull up when they play these videos through the app. Our Android users do not. Why is this? How can we get these removed on our end, through the developer site?