Cross-Platform Mobile App Development

I'm in need of a professional mobile app developer who can help me create an APK for a cross-platform mobile application. The app needs to support both Android and iOS platforms.

Ideal Skills and Experience:
- Extensive experience in mobile app development, specifically for both Android and iOS
- Proficiency in creating APKs
- Familiarity with popular cross-platform development tools
- Strong programming skills, particularly in Java, Swift, or Dart
- Previous experience developing utility/tool or e-commerce apps is a plus.

I look forward to your bids and hope to work with a professional who can deliver a high-quality app.