App Update for New Listing

I'm looking for an experienced mobile app developer to update my existing app on both iOS and Android platforms. The primary requirement is to add a new app listing.

Key Requirements:
- Update both iOS and Android versions of the app
- Integrate a new app listing

Ideal Skills and Experience:
- Proven experience in mobile app development for both iOS and Android
- Strong understanding of app architecture and update processes
- Attention to detail and ability to ensure app stability post-update

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