How much will it cost to develop an analogue of the inDriver application for iOS and Android?

Question

Mobile development

It is necessary to develop an analogue of the inDriver application for iOS and Android
indriver.ru Here is the project address
The application will have minor improvements:
I don’t know on iOS)
2. The application should work with an OpenStreet map, not GooglMaps (again, superficial knowledge says that Google maps in commercial projects are paid)
3. Registration is not via SMS sending a confirmation code, but via e-mail
4 The profile will be slightly expanded.
5. An ad block will be inserted
Please estimate the development time (at least roughly based on their cloning project) and based on this amount.
You can provide separate data for Android and iOS platforms

Answer 1

Offhand :) :
3 months for the application. Applications 4, means 12 months for mobile phones. = 4 million rubles
Server: 6 months - 2 million rub.
Testing: 1 million
Management + design 1 million.
Risks: 2 million :)
But in fact there will be more :)
Ps: I didn’t look at the functionality, but thought about it as a taxi service.