Genshin Impact until these last few months had exactly what @onnekas@sopuli.xyz is suggesting on Google Play. You could redeem Google Play points for a voucher that gave you $3 off a real money purchase. Additionally, devs on Reddit would often post codes to give a set dollar amount off of a new app. I’m pretty positive that at least with Google Play, vouchers that can give $X off a purchase are baked into the platform in numerous ways.
Genshin Impact until these last few months had exactly what @onnekas@sopuli.xyz is suggesting on Google Play. You could redeem Google Play points for a voucher that gave you $3 off a real money purchase. Additionally, devs on Reddit would often post codes to give a set dollar amount off of a new app. I’m pretty positive that at least with Google Play, vouchers that can give $X off a purchase are baked into the platform in numerous ways.