New Delhi, March 19 -- "My B-school friends went out yesterday, and the CA in our group sent this (Excel) sheet with the split. Kinda love it *laughing emoji*."

When Sneha Prabhu posted this on X two months ago, she didn't expect the tweet to blow up the way it did. "The responses just won't stop.I had to mute the notifications after a point," recalls the 24-year-old entrepreneurship student from Hyderabad. At last count, her tweet had over 500 quote tweets, nearly all saying the same thing: "Has your CA friend heard of Splitwise?"

Founded in 2011 by Jonathan Bittner, Marshall Weir and Ryan Laughlin, Splitwise is a US-based expense-sharing platform with over 10 million Android downloads globally (data for iOS downloads was not available...