Mobile Booking App

Hi, am looking an app developer to work on my DJ booking app. Essentially I want the App developed in React Native or Flutter so we can have one code for both iOS and Android version.
It's an App that Registers music DJs for customers hire. The is an Android version that is already built and which you can use to gain idea of what is required if you want but I have attached the workflow of the App for you to see. There are just 2 user roles, one of users registered as DJs and other for customers who want a DJ. There's already a PHP backend which supports the API but you need to configure payment feature to the app using stripe and encryption for the data stored in the database.

Note: the screens are not that many, what you see is the workflow, some screens have been repeated to show details not obvious without scrolling, others are the same screen but changes when a DJ is logged in and when a customer is logged in, you know how that works.