K Health is among the most downloaded medical applications for smartphones with more than four million users. Bloch previously was CEO of Vroom, a large online car retailer based in the U.S.; co-CEO of Wix, a leading website publishing platform; and CEO of mySupermarket, a digital platform that allows consumers to shop for the best prices on groceries. Allon is also a former venture capitalist, serving as a Venture Partner with Greylock's Europe/Israel fund and a General Partner at JVP. He holds an M.B.A. from Columbia Business School and is based in New York.