Hello,
I would like to know what features you need form the shared reference links. Once I receive the required features, I will be able to provide you precise development estimations. Moreover, do you need Android as well as iOS app? Please clarify. And we need to know the required app flow. From which of the shared reference app I need to consider the required app flow? I need more info over the same. Awaiting your response to proceed the project commencements.
Meanwhile, please go through my quick introductions:
I have been creating high quality and excellent Native iOS and Android apps for 7+ years using Swift, Objective-C, Java and Kotlin. Also, I am good at in Cross-platform Development with ReactNative. I've developed several apps such as Dating, Shopping, Health/Fitness, Photo & Video sharing, Taxi Booking, Food delivery and etc.
I am expert in Geo-location, GPS tracking, Payment gateway integration, and Social media integration such as Facebook, Twitter and so on. I have good experiences in Firebase, Twillio Api, QuickBlox, AWS and so on. I can also develop backend APIs using PHP(Laravel, Codeigniter), NodeJS and .Net as well as a web portal including admin panel.
I've rich experiences to work with various 3rd-party services and APIs to integrate them into existing and new applications to extend required functionality.
Best Regards!