New Delhi [India], December 27 (ANI/BusinessWire India): Impact App - India s most used health app, based out of Mumbai, raised USD 600K from 50 angels including Portea s Ganesh Krishnan, Hubilo s Vaibhav Jain, Khatabook s Ravish Naresh, OTO s Sumit Chazzed among many others, in their pre-seed round