Cross-Platform Mobile App Development - Physical Fitness

I'm looking for an experienced mobile app developer to create a cross-platform Physical fitness application for both Android and IOS. This app will be a comprehensive mental fitness tool, featuring meditation guides, progress tracking, daily tips and articles, and various mental fitness games.

Key Features:
- Meditation guides
- Progress tracking
- Daily tips and articles
- Mental Fitness games

User Engagement:
To enhance user engagement, the app will need to incorporate:
- Gamification elements
- Push notifications
- Social sharing options

Ideal Skills:
- Extensive experience in cross-platform mobile app development
- Proficiency in implementing gamification elements
- Experience with integrating social sharing options
- Understanding of mindfulness and mental fitness concepts would be a plus.