Combined app for different app-based-cab-operators

There are multiple app-based cab operators in India. Users generally don't differentiate between the cars themselves since the sedans are quite similar (even Uber does not provide the Audis and the Mercs). In such a scenario, what matters is the availability and the price. However, to check the closest/cheapest cab, users have to open individual apps of all operators. I would like to create a combined app which shows cars from all operators on the map. Users can choose from different operators based on price/proximity/operator. Is it possible to fetch the GPS data of these cabs and put it into one app? This does not have to be a quick project.