Unified Payments Interface (UPI) is the preferred digital payment method of Indian consumers. An instant real-time mobile payment service that allows consumers to link multiple bank accounts in a single smartphone app and make bank transfers with just their unique UPI ID. Launched in 2016 by the Indian Government through its subsidiary NPCI, its primary goal is to drive India toward becoming a cashless society. 600+ banks and 120+ third-party apps are supported and there is an active consumer base of over 385 million users. UPI processes over 117 billion transactions annually.As the only provider of this future-proof cross-border solution for international merchants, PPRO removes the burden of cumbersome invoice and airway bill upload procedures, which in turn combats the high failure rate of OPGSP regulatory frameworks. In terms of the UX and conversion rates, the native solution will be the same as the domestic solution.  And as PPRO manages the cross-border payment processing there are no local requirements for partners.This is the full list of apps that UPI transactions can be paid with https://www.npci.org.in/what-we-do/upi/3rd-party-apps .  PhonePE , BHIM and GooglePay are certified for cross-border transactions.These three apps make up 90% of the UPI consumer base.