We do PPP for Caido in India and Brazil but for subscription. Brazil definitely worth it, India not so much.

For our voucher system we decided to not do PPP otherwise you need some kind of geoblock ala Steam to avoid code reselling.

Thanks for the heads up on the code reselling risk. That was my biggest worry with generic coupon codes too.

To solve this, I decided against just using a 'coupon' on the main checkout. Instead, I set up a completely separate payment flow (Topmate) specifically for India that requires local UPI payment methods.

My theory is that the requirement to use a local Indian payment method acts as a 'natural geoblock' against arbitrage. Interesting to hear that India didn't convert well for you even with PPP—I'll keep my expectations in check.