The scope is to create simple mobile app in [login to view URL] (Ract Native) framework
Mobile app contains 5 screens (login, create account, main page with list of entries, entry details, adding new entry)
Entry is like blog entry - contains: one image (chosen from mobile gallery) or option to make photo adhoc from app and accept it, comment, date.
Mobile app goal is only to add new entries to your account (list them, and remove)
There is HTTP JSON API (REST) which contain only 5 API methods (create account, login, list my entries with details, add entry, remove entry), no option to modify entry.
The view should use standard Rect Native components, there is no special graphical design requested nor provided. The requirement is only that some color (eg blue) should be used
As a result full source code (EXPO) should be also provided.
This is first step simple app. In future, enhancing ap is possible.
App should work on Android and iPhone devices.
Please specify concrete cost of above working app (with sources)