Cross-Platform Social Media App

I'm looking to develop a social media application for both iOS and Android platforms. The core feature of this app will be messaging.

Key requirements:
- Messaging functionality is a must
- User-friendly interface
- Secure and scalable backend
- buy credit for meesege

Ideal skills and experience:
- Proven experience in building social media apps
- Strong knowledge of iOS and Android development
- Expertise in backend technologies for messaging services
- UI/UX design skills

Please provide your portfolio and relevant experience. Looking forward to your bids!