CheQ
“CheQ built a beautiful business around the idea that paying credit card bills should earn you rewards — 4 million users agreed, and the LED credit card gimmick was genuinely clever marketing. The problem is that Google Pay and PhonePe just rolled out native credit card bill payment with UPI rewards, and Paytm already had it, which means CheQ's core value prop is now a checkbox feature in apps people already have open twelve times a day.”