Cross-Platform Project Tracking App

I use Monday.com as my CRM system for budgeting, budget and task tracking. I need a mobile app (UI) for Monday.com focused on project tracking. The app should be available on both iOS and Android platforms.

Essential features:
- Gantt charts
- Time tracking
- Task tracking
- Expense tracking
- Resource allocation

Ideal skills and experience:
- Experience in developing mobile apps for project management
- Proficiency in creating Gantt chart functionalities
- Expertise in time tracking and resource allocation features
- Strong knowledge of both iOS and Android development
- Familiarity with Monday.com’s current functionalities and APIs

Please provide relevant work samples and a brief project plan.