Mobile Stock Screener Development

I'm seeking a developer to create a stock screener that operates on a mobile platform, specifically designed for both iOS and Android. The screener's primary function will be based on weekly level break crossing.

Key features and requirements:
- A stock screener mobile application
- Designed for both iOS and Android
- Functionality based on weekly level break crossing
- Option for a macOS desktop version

Ideal skills and experience:
- Proficiency in mobile application development
- Experience with stock market software
- Knowledge of macOS application development
- Familiarity with iOS and Android platforms
- Strong understanding of weekly level break crossing concept