From a design perspective, this

From a design perspective, this checkout focuses on reducing friction and making the purchase decision feel simple and predictable.

The plan cards use clear hierarchy, visible pricing, benefits, and a recommended option so users can compare quickly without reading unnecessary information, while Apple Pay, grouped form fields, a clear order summary, and one dominant CTA reduce the number of decisions during payment.

For developers, this type of UI is valuable because it can be built as reusable components with well-defined states for selected plans, discounts, add-ons, validation, and payment methods, making implementation easier to maintain while also supporting conversion goals such as faster checkout completion, fewer abandoned payments, and higher-value upgrades.