Prompt
what's a good payment api for mobile app subscriptions?
Latest observation
Oct 14, 2026
OpenAI APIWeb search: off
A good payment API for mobile app subscriptions depends on whether you mean App Store / Google Play subscriptions or subscriptions billed outside the app.
If you sell digital subscriptions in the app
Use the platform billing APIs:
- Apple StoreKit / App Store In-App Purchases
- Google Play Billing
These are the standard and usually required for digital goods sold inside iOS/Android apps.
If you want a unified subscription management layer
Good options are:
- RevenueCat — very popular for mobile subscriptions; handles Apple/Google billing, receipt validation, entitlement management, analytics, and cross-platform support.
- Adapty — similar category, strong for subscription infrastructure and paywalls.
- Qonversion — another subscription management platform with analytics and attribution.
If you mean subscriptions on a website or for physical services
Good general payment APIs:
- Stripe Billing — excellent for recurring payments, strong API, great docs.
- Braintree — solid alternative, especially if you need PayPal.
- Paddle — useful for SaaS/digital products, handles taxes/VAT in many cases.
Quick recommendation
- iOS/Android digital subscriptions: RevenueCat + StoreKit/Google Play Billing
- Web or SaaS subscriptions: Stripe Billing
- Need PayPal too: Braintree
- Need tax handling for digital products: Paddle
If you tell me:
- iOS, Android, or both
- digital content vs physical/service subscription
- whether you need web checkout too
…I can recommend the best stack more precisely.