Android & iOS Mobile App - Business Directory

Looking for Android & iOS App Developer (Firebase + Flutter) to Build Android & iOS App as Business directory. Save Business Information for registered user - Name, Address, Email Id, Business Categories, Details and so on - Search Filter based on few field. - App notifications if new business registered to all user who ask for notification. - Ad Integration with Google Admod - Show few ads based on image/video/asset information provided by me.

Workflow on paper attached.