Secure on-device vault
While offline, Tap to Pay on iPhone reads and encrypts payment card data.
Tap to Pay on iPhone
Accept tap transactions even when the connection drops - then settle securely when you are back online.
While offline, Tap to Pay on iPhone reads and encrypts payment card data.
The encrypted card numbers are temporarily saved on the device.
Transactions leave the device only after connection is established.
Keep card data protected in use cases with limited connectivity.
Offline transactions
It's a feature of Tap to Pay on iPhone that lets an iPhone accept tap transactions even when there's no internet connection. The phone safely holds each transaction in a built-in secure area, then automatically sends them through once the connection returns. Offline transactions are securely stored and do not guarantee that they will be approved or authorized at a later time.
*If a card issuer rejects a payment after the iPhone regains connectivity, the merchant will bear the risk of an uncollected balance.
Use Case | Airline
Airline cabin sales during a mid-flight internet outage
Flight attendants use iPhones with Tap to Pay on iPhone to sell food, drinks, and duty-free items during a flight. Over the ocean, the plane's internet connection cuts out completely — no signal for hours at a time. With Store & Forward, the iPhone keeps accepting tap transactions the whole way through, without any interruption.
From the gate to landing — five steps that keep cabin sales moving.
The app quietly receives a 24-hour “offline pass” — permission to accept transactions on its own without needing to be online.
The phone detects the lost connection and silently switches to “save now, send later” mode. The flight attendant sees no change — checkout can continue.
The transaction is immediately locked into a secure vault built into the iPhone's chip. The app never sees the actual card number, just a secure encrypted record of the transaction.
The moment the iPhone picks up a network connection, the app automatically starts sending all the saved transactions — one by one, in the order they were taken.
Once the transaction is approved or declined, it's removed from the vault.
Card information is held securely via Tap to Pay on iPhone proprietary technology until a later time when online authorization can occur.
In offline mode, no card authorization is performed. Only the card information is securely captured and held.
Using Tap to Pay on iPhone with Store & Forward allows integrators to build auto-retry logic over time.
By selecting Store & Forward, transactions continue, MagTek's Virtual Reader iOS SDK enables greater recovery due to durable, multi-use tokens.
Tap to Pay on iPhone
See how Store & Forward fits your Tap to Pay on iPhone rollout - then talk with a MagTek specialist about next steps.