Mobile app for team sport players and coaches

Hello! I'm looking for someone to develop a mobile app for team sport players and coaches. It should be compatible with both iOS and Android. Primarily, I need this app to have the key functionality of game strategy planning. It should also be designed to be a standalone app, without needing to integrate with any other systems or services such as social media or team management software. If you can work on this project, I would be interested in hearing from you. Thanks!