Collision Center App Development

I need a mobile app for both iOS and Android, specifically designed for collision centers. The app should allow users to create a new tab for every vehicle, within which specific categories of pictures can be sorted, such as exterior damage, interior damage, and mechanical damage. It should also have the capability to categorize any other elements deemed necessary by the collision center.

Key Features:
- Cross-platform compatibility (iOS and Android)
- User-friendly interface for creating vehicle tabs
- Comprehensive categorization system for vehicle pictures
- Will be making this a monthly subscription app

Additional Requirements:
- Integration with existing software systems
- User authentication features
- Future-proof design for potential partnerships with other software companies

Ideal candidates for this project should have:
- Proven experience in mobile app development, particularly cross-platform apps
- Prior work with collision centers or similar industries would be a plus
- Expertise in integrating with existing software systems and implementing user authentication features