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A full redesign and a real APDU console! • New "Instrument Panel" look — light & dark themes • Redesigned card view: brand, expiry & masked number with tap-to-reveal • Manual Mode is now a working APDU console: connect, power, set protocol, send commands, read decoded responses • Live diagnostics with TX/RX + status-word decoding • New Settings screen • Card numbers masked by default, never stored • Edge-to-edge layout & system-bar fixes
NFC card reader — phone NFC & ACR122U USB · brand, expiry, APDU console
Turn your Android phone — or an external ACR122U USB reader — into a precise tool for inspecting contactless EMV cards and NFC chips. From install to your first read takes seconds, with no account and no setup headaches. Two ways to read ✓ Phone NFC — hold a contactless card to the back of your phone ✓ ACR122U over USB — plug in the popular ACS ACR122U for desktop-grade reads What you get • Card brand (Visa, Mastercard, Amex…), expiry, and a safely masked card number • Clean "instrument panel" UI with light & dark themes • Live diagnostics — every command/response with decoded status words (9000 OK…) • Manual APDU console: raw commands, presets (SELECT PPSE, SELECT AID, READ RECORD…) • Full ACR122U session control: connect → power (ATR) → set protocol → transmit Built for trust 🔒 Card numbers masked by default and never stored 🔒 Everything stays on-device — no account, no cloud, no tracking 🔒 Reads only publicly available data, for inspection and diagnostics