Multi-Sport Betting Tracker App

I need a cross-platform application (iPhone and Windows) to track betting profits and losses across multiple sports and racing types.

Key Features:
- Support for various sports (NRL, AFL, MLB, NFL, NBL, NBA, NHL) and racing (Harness, Gallops, Greyhounds)
- Auto-lodge bets from multiple platforms (Tab, Ladbrokes, Tabtouch, Picklebet, Betfair, Sportsbet)
- Multiple user accounts with secure authentication via email and password
- Data visualization using line graphs, bar charts, and pie charts

Ideal Skills and Experience:
- Mobile and desktop app development expertise
- Familiarity with betting platforms and APIs
- Strong UI/UX design skills
- Data visualization techniques
- Secure user authentication implementation

Looking forward to your bids!