No, in the case of PayPay App, it is not required basically. From the standpoint of user experience, the payment on app is recommended.
If payment is made on browser, you need to log in every time.
PayPay for Developers FAQ
No, in the case of PayPay App, it is not required basically. From the standpoint of user experience, the payment on app is recommended.
If payment is made on browser, you need to log in every time.