Number - NFC Card Reader play online

Curious to see what data your NFC credit/debit card exchanges with a payment terminal when you perform a contactless payment? Install Number!

Number lets you use your device as a point-of-sale terminal so that you can view the details of a full EMV contactless transaction. All you have to do is hold your contactless card near the NFC reader of your device, typically located in the upper part of the back of the device.

The app does not perform an actual transaction, this is simply for illustration. You won't be charged.

Main features:
- Fully offline app
- No login infrastructure
- No plain card data is ever stored
- Security check after new card is read
- The curious cardholder can view a detailed log of the transaction performed between the card and the device