NFC mobile payment appSave you card track data and pay in shops with contactless card readers using your mobile phone.Add the cards using a mini magnetic stripe reader in your phone, or paste the track data into the app.Store up to 20 cards on your phone and choose which card to use.App has no internet access and does not share info with other apps.You need to get the track2 magnetic stripe data from your card using a USB reader. Now you can also use an audio jack card reader in your phone.Both available on Ebay or Amazon for 5-15$.Android 4.4 or higher and NFC required. Device must be unlocked when using mobile payment.