Hello — I plan to sell via both a website and a mobile app. I need a payment system that supports web checkout and in-app payments. What setup served you for multi-platform payments?

If you need both web and app payments, a SaaS PSP with SDKs for web and mobile works best. That allows unified payment logic and consistent API across platforms. I used one where I implemented web checkout and mobile SDK separately, but under the same account — easier to track revenue and reconciliations. Important: check that mobile SDK supports in-app currency, device compatibility, and secure storage of tokens. Unified dashboard simplifies analysis across platforms.