This app REQUIRES the idChamp Bluetooth Smart (BLE) NFC reader/scanner with firmware 2.0 on Android 4.4 or later (with working BLE stack) It's used for setup for NFC for iClass, PROX, ICODE, MiFare, AWID, & More. Quickly and easily change settings. Select card type for ISO15693 & ISO14444A CSN, iClass CSN, Tag-It CSN, my-d CSN (Infineon), I-Code CSN (Philips, NXP), etag CSN (Secura Key), MiFare Ultralight CSN (Philips, NXP), I-tag CSN (IBM), DESFire CSN, Advant CSN (Legic), HID iClass ID, Sec