Hi, I am available to create your landscape iOS app. I can crate this for you from scratch in OC running iOS 12+ and backwards compatible to iOS 9 and will submit it to the App Store for you, and will provide you with the full source code - it will be yours and you will be free to resume it in as many apps/updates as you wish.
It would be great to hear your thoughts on the app content, what did you have in mind?
Best,
EMC