List: Use these apps to turn your smartphone into a contactless device.
3. Key Ring
This wallet, aimed at loyalty cards, uses barcodes rather than NFC to pay. The phone’s camera is used as a barcode scanner to upload the image of a barcoded cards onto the app.
When paying at the store, the app displays a barcode that clerks can scan. Customers will no longer need to carry loyalty or membership cards around and can simply deploy them from the app when needed.
The app’s remote back-up to the cloud will mean that there is no danger of losing these cards even if the phone itself is lost.
You can also share a Key Ring account with another user, such as a spouse, if both have the app installed.