Emula Live

Emula is a focused utility for managing and activating NFC card UIDs on compatible Android devices. Add a 4-, 7-, or 10-byte UID manually or read it from a physical NFC card. When reading, Emula automatically detects the UID length and selects the matching mode. Tap a saved card to activate it. Card names and UIDs stay in private storage on your device. Features: • Save and edit cards with 4-, 7-, or 10-byte UIDs • Read UIDs from physical NFC cards with automatic length detection • Choose the UID length and edit numbered byte cells with easy selection and deletion • Activate or deactivate a saved UID with one tap • Clearly see which card is currently active • Check device support with built-in NFC diagnostics • No ads, accounts, analytics, or cloud storage • Free, with no paid features, purchases, subscriptions, or donations Important: Emula emulates only the NFC UID. It does not copy card memory, cryptographic keys, authentication data, or other security features. UID activation requires compatible NFC hardware and software, plus a one-time WRITE_SECURE_SETTINGS permission granted through ADB. Root access is not required. Emula detects the permission without an app restart. UID emulation support varies by device and Android version. You can save, edit, and read 4-, 7-, and 10-byte UIDs. Activation of 7- and 10-byte UIDs also depends on your phone, firmware, and reader. Existing four-byte cards remain compatible. Having trouble with emulation? If activation fails or your reader does not detect the selected UID, open the app menu → NFC diagnostics → Email, or copy the report and send it to [email protected]. Include what happened and the reader model, if known. Diagnostics include device and firmware details and may contain card UIDs; review the report before sending. Reports help investigate compatibility but do not guarantee support for every device. Use Emula only with cards and systems that you own or are authorized to test.