One of the most annoying problems I face in shopping apps is payment failures. Sometimes transactions fail but money still gets debited, or payment gateways time out during busy hours. This really damages trust and makes customers hesitate to buy again.

Id like to ask:

• Which payment solutions are the most reliable for shopping apps?

• Should developers integrate multiple gateways as backups?

• Can features like retry payment or instant refunds improve the experience?

In shopping app development, I feel payment reliability is as important as product browsing or delivery. How do you think developers can make the payment process more secure and hassle-free?