You can pay for Apple Store subscriptions using a credit or debit card, Apple Pay, PayPal, and your Apple Account balance. You can also use Apple Gift Cards, mobile phone billing, and in some regions, online banking or other e-wallets.
To see or change what method your account uses, navigate from your iPhone/iPad → Settings → Your Name → Payment & Shipping → Add Payment Method. Availability varies by country/region and must match your Apple ID’s country.
For more details, please reference the Apple Support website.