A mobile and desktop app for streaming videos at any time for anyone with an in-app subscription

I am looking for a skilled developer to create a mobile and desktop app for streaming videos. The app should be available for iOS, Android, and desktop platforms. I have some specific features in mind for the app, including user profiles and offline viewing. Additionally, I would like the app to have subscription tiers for users to choose from.

Ideal Skills and Experience:
- Experience in developing mobile and desktop applications for iOS and Android
- Proficiency in implementing user profiles and offline viewing features
- Familiarity with implementing subscription tiers in apps
- Strong knowledge of video streaming technologies and best practices