The crux of Uber's service is its app, which allows users to order rides, track their vehicle, and pay for the service, but the new dial.uber.com site will make the app irrelevant for some users in India. The site allows users to enter their phone number and order an Uber driver, then communicate with that driver over the phone rather than through the app.
When using dial.uber.com, riders will have to pay with cash, since the site does not process payments. For riders, the site's benefit is that it saves room on their phones. Many mobile users in India tend to purchase cheaper mobile hardware, and part of that saved money results in lesser storage space. With dial.uber.com, Uber can penetrate more of the Indian market, even if it means reducing the popularity of the app itself.