How ShareIt became a go-to file transfer app in countries where data is prohibitively expensive; the company claims the app has 2.4B downloads globally (Rest of World)

Rest of World:
How ShareIt became a go-to file transfer app in countries where data is prohibitively expensive; the company claims the app has 2.4B downloads globally  —  Virtually unknown in the West, ShareIt boomed in places where data is expensive.  But as the cost of data falls, can it stay relevant?