# Terminal applications

Registering terminal applications and linking them to a merchant is required for Tap to Pay on Apple and Tap to Pay on Android.

See our [Tap to Pay on Apple](/guides/money-movement/accept-payments/card-acceptance/tap-to-pay-iphone/) and [Tap to Pay on Android](/guides/money-movement/accept-payments/card-acceptance/tap-to-pay-android/) documentation.