CENFC vs NFC Kit

CENFC is an advanced NFC toolkit for iOS. Scan, identify, dump, and analyze NFC tags — all processed locally on your device with zero data collection. SCANNER Instantly identify NFC tags through ATQA/SAK lookup and protocol probing. Supports ISO 14443, ISO 18092 (FeliCa), and ISO 15693. Accurately detects chip variants and card families, displaying UID, protocol details, and iOS operability status at a glance. MEMORY DUMP Read the complete memory of any operable NFC tag. Browse page-by-page and block-by-block breakdowns with parsed NDEF content. Export dumps in hex, JSON, or raw binary for forensic analysis or backup. NDEF READ & WRITE Create, read, and write NDEF messages to compatible tags. Supports Text, URI, Smart Poster, MIME, and External record types. Build multi-record messages from scratch and write them directly to any writable tag. PASSPORT READER Read electronic passports and travel documents (eMRTD) via BAC authentication. Enter MRZ data to securely access data groups — including MRZ, face image, additional personal details, and security objects. Perform Active Authentication to verify chip genuineness. RAW COMMUNICATION Send custom APDU commands directly to NFC tags. Full ISO 7816 APDU support with complete command logging — built for developers and researchers. PROTOCOL TOOLS - Hex Converter — Convert between hex, decimal, binary, and ASCII - CRC Calculator — Compute CRC_A and CRC_B per ISO 14443-3 - ATQA/SAK Lookup — Identify card type from raw protocol parameters - Access Bits Decoder — Decode sector-level permissions - BER-TLV Parser — Parse and visualize TLV data structures OPEN SOURCE & PRIVACY FIRST CENFC is fully open source — inspect every line of code yourself. Every NFC operation runs entirely on-device. No data leaves your phone. No servers. No account required. Requires iPhone 7 or later with NFC capability.

NFC Kit reads, writes, erases and protects NFC tags. No ads, no account. READ • UID, chip type, capacity and tag status at a glance • Decodes every NDEF record type: link, text, Wi-Fi, contact card, phone, email, message, coordinates, MIME • Full memory view in HEX, ASCII or binary with colour-coded regions • Export the memory as .txt or .bin WRITE • Ten content types, each with its own form • Capacity is checked before writing, and the tag is read back and compared byte by byte • Edit, reorder and delete individual records • Erase the NDEF content or reformat the tag TAG SECURITY (NTAG213/215/216, Ultralight EV1) • Set and remove the PWD/PACK password • Choose the first protected page (AUTH0), block reads too (PROT), limit attempts (AUTHLIM) • Lock a tag permanently to read-only, behind a two-step confirmation • Passwords live in the Keychain and travel through iCloud Keychain, end-to-end encrypted HISTORY AND AUTOMATION • Every scan is saved; search, star and give tags a nickname • One-tap templates, batch writing with a counter and a per-tag error log • Copy content to another tag, back a tag up to a file, export and import history as JSON • Shortcuts actions for Siri and automations LIFETIME UNLOCK - $4.99, ONE-TIME, NO SUBSCRIPTION These three features require the purchase; everything else in the app stays free forever: • iCloud backup of the tag history • Export and import of tag data • Reading and editing raw tag memory The purchase restores on every device on the same Apple Account, and the app has a Restore Purchases button. WHAT iOS DOES NOT ALLOW - SAID UP FRONT iOS does not let apps read MIFARE Classic data (only the UID), copy a UID onto another tag, emulate a tag, or join Wi-Fi automatically from a tag. These are system limits that no app gets past. The app includes a page explaining all of them. Requires iOS 18, so an iPhone XR or newer.