On this page
No Headings
App Switch
Last updated: June 7, 2026
DOCS
CURRENT
Overview
App Switch helps PayPal customers start a transaction in a browser or app and complete it in the PayPal app, streamlining checkout with strong multi-factor authentication. The buyer can use biometrics or a passkey to log in instead of entering their password.
The buyer experience falls back to the web flow in cases where App Switch isn't available.
Buyer flow
- The buyer selects the PayPal button from another app or website.
- The PayPal app opens and uses biometrics or a passkey to log the buyer in.
- The buyer reviews purchase details and completes the transaction in the PayPal app.
- The buyer is returned to the app or website where they selected the PayPal button.
Integration options
API: One-time payments
Merchant's manage the payer's interaction between their app or website and the PayPal app
API: Vaulted payments
Vaulting helps securely save a payer's PayPal wallet, with the payer's consent, for future use.
App Switch for JS SDK
Enable App Switch in the JavaScript SDK for resume flows and error scenarios.