Upgrading and adding a new feature to a Hybrid mobile App. - App project

Mobile app project description

Hi,
We need an IOS app to collect location information of the client within some intervals and
POST this collected info to a configurable endpoint.
Required Info to collect:
1) Value Identifier (Device specific, non-changing ID)
2) Timestamp
3) Longitude & Latitude
4) Speed & Direction of Travel
5) Accuracy
Important Details:
- Unit ID should be the same even if the user resets the phone or reinstalls the app.
- Location info should be recorded only from actual measurements by GPS, not an
approximate estimation where WI-FI or other peripherals are also used from time to time.
- App should be able to run in the background
- Start the app automatically during device start-up
- This app is not intended for public use. It will be used only by authorized Enterprise users
where there are sufficient contracts for collecting and processing the related data
- All backend routers will be documented and provided for testing
- We would prefer to have it coded with Swift, but we're also open to other alternatives.
Flow:
- Get config data from the backend,
- Start collecting location info based on config data (Either every x second or y meters of
change)
- Post that collected info back to the backend

UI:
- There will be three states for the view, icons and required design details such as
focoloursolors and colours ill be provided:
    1) Connected to backend & GPS is working
    2) Connected to backend & GPS is NOT working
    3) NOT Connected to backend & GPS is NOT working
- Show the last measured Longitude & Latitude at the app’s bottom.
Please don’t hesitate to get in touch with your questions.
Best,