Add several features to our applications (Android, iOS) -- 2

We have 2 native apps - Taxi aggregator - on Android (1 for passengers and 1 for drivers) and 1 native app on iOS (for passengers only).

Since our apps are native, we are looking for 2 developers (1 for iOS/2 for Android) or 1 team (where we can find both of developers). You will take the role of our outsourcing developers and implement a number of features in our applications.

List of planned functional improvements:
-To create the display of the passenger’s geolocation on the map "in real time" (passenger app, android+ios)
-To add sound signals to some push-notifications (passenger app, android+ios)
-To add a countdown indicator of time and kilometers prior to arrival at the destination point (driver app, android only)

These two tasks are on agreement (may be some changes in description):
-To create a new screen with the ability to upload photos through phone’s camera (driver app, android only)
-To make a method by which photos will be sent from the application (paragraph 4) to the administrator's website

Let me know if you are interested in these tasks and I will send you more detailed technical assignment!