App Deployment and Bug Fixing

I need an experienced app developer to help fix bugs and fully deploy my almost-ready ESS app. I require an APK for Android and an iOS app. All project files will be provided.

Requirements:
- Fix crashes and errors
- Generate APK for Android
- Create iOS app

Ideal Skills:
- Expertise in Android and iOS development
- Experience with app deployment
- Strong problem-solving skills
- Familiarity with debugging tools

Looking forward to your bids!