NFC Flow vs NFC Utils

NFC Flow is the complete NFC solution for iPhone, combining powerful reading, writing, and cloning capabilities with an intuitive interface. Whether you're a smart home enthusiast, IoT developer, or business professional, NFC Writer makes working with NFC tags simple and efficient. READ & WRITE NFC TAGS - Instantly read data from any compatible NFC tag - Write text, URLs, custom data, and JSON programs - Automatic data type detection - Real-time scanning with visual feedback - Support for multiple NDEF formats ADVANCED PROGRAM WRITING Create sophisticated automations with JSON-based programs: - Smart home scene triggers - IoT device control via HTTP APIs - MQTT message publishing - App deep linking and launcher shortcuts - Device configuration deployment - Built-in JSON validation and formatting - Real-time syntax checking COMPREHENSIVE TEMPLATE LIBRARY Get started quickly with pre-built templates: FREE TEMPLATES - WiFi Credentials - Share network access instantly - Device Configuration - Deploy settings to hardware - Contact Information - vCard format business cards PRO TEMPLATES - Smart Home Scenes - HomeKit and smart device automation - App Launcher - Deep links and app shortcuts - IoT Control - REST API commands for connected devices - MQTT Messages - Publish to IoT message brokers - User Preferences - Store and share settings - Event Information - Calendar-ready event details - Product Information - Warranty and specification tracking TAG CLONING (PRO) Save time with efficient tag duplication: - Read one tag, write to multiple tags - Clone up to 10 tags in a single session - Perfect for bulk deployments - Maintain exact data consistency COMPLETE HISTORY TRACKING Never lose important data: - Full record of all read and write operations - Timestamp every transaction - Tag identification tracking - Search and filter capabilities - Free: Last 10 records - Pro: Unlimited history storage POWERFUL EXPORT OPTIONS (PRO) Take your data anywhere: - Export history as CSV for spreadsheet analysis - Export as JSON for programmatic access - Create full backups of all records - Share individual records via Messages, Mail, and more PERFECT FOR - Smart Home Enthusiasts - Automate scenes and routines with physical NFC triggers - IoT Developers - Test MQTT, HTTP APIs, and device communication - Business Professionals - Deploy WiFi credentials and configurations - Event Organizers - Share contact info and event details effortlessly - Asset Managers - Track inventory and product information - Technical Users - Debug NFC implementations and create custom workflows

Put your ACS Bluetooth reader to work. NFC Utils connects the ACR1555U and ACR1255U-J1 to your iPhone, iPad, or Mac so you can read, write, and configure supported NFC tags without a cable. It’s free, with no ads, no account, and no cloud service. Choose your reader in Settings, pick a tool, and present a tag. NFC Utils remembers the reader and reconnects when it’s available. Leave it on your workbench while you work through a stack of cards, or take it along with your iPad. On iPhone, you can also use the built-in NFC antenna. Compatible USB CCID readers give you a wired option. Write a link to your menu, put instructions on an equipment label, or update the details on a contact card. Load From Tag brings an existing message into the editor so you can change it and write it back. Each tool gives you the fields for that job and a clear result when it finishes. When a tag won’t cooperate, start with a read. NFC Utils identifies the chip and shows its stored records, memory, and protection state. Full Scan adds a memory map with lock markers. On supported chips, you can check NXP’s factory signature or read a TagTamper seal’s status. Copy the result as text or JSON, share a scan, or return to it in History. ePassport Read holder details, the photo, and any signature image from an ICAO 9303 passport chip. Enter the document number, birth date, and expiry from the printed machine readable zone (MRZ), or paste the MRZ. Access uses BAC or PACE. Data Genuine checks the files against the issuer's signed hashes. Chip Original tests whether the chip holds its private key when the app supports the offered check. Signer checks the certificate chain against bundled country roots. These checks do not replace a border check. The app cannot read fingerprints. Passport data and remembered unlock fields stay on your device. The master list is refreshed per release. The tools go deeper when you need them. NTAG 21x • Write and edit records on NTAG213, NTAG215, and NTAG216. • Set or remove password protection, keep a public link readable while restricting writes, and put the UID or read counter into a URL. • Permanent locks are available when the tag is ready to stay as it is. NTAG 424 DNA • Check and change AES-128 keys, manage file access, and configure Secure Dynamic Messaging. • Generate URLs with changing counters, authentication values, and optional encrypted data, then use Decode SDM URL to inspect a read and check its CMAC. ICODE SLIX2 • Manage passwords and protected memory regions, set AFI and DSFID identifiers, and test or change the EAS alarm response. • Related ICODE chips get the tools their hardware supports. Raw Commands lets you inspect the exchange yourself. Start with a read-only preset such as Get Version, then see the sent bytes, received response, and decoded fields where supported. On Mac, the chip readout sits beside the records, with tools in a sidebar and an adjustable interface size. An external reader brings NFC to your Mac or iPad. There are no advertising interruptions and no analytics tracking your scans. Tag data and keys stay on your device. You decide what to copy, export, or share. The NFC Utils guide explains the tools, settings, and permanent changes. Read our privacy policy.