Smart NFC
Smart NFC: Read & Write Tags

Read, write, and reuse standard NFC tags.

Scan NDEF records, compose typed tag content, and write compatible tags through a guarded iPhone workflow that checks the physical tag before changing it.

On the App Store since August 2025

Smart NFC showing searchable scan filters and colorful NFC tag cards on iPhone

A careful Core NFC workflow

Read NDEF records

Scan a compatible tag, parse its records, and inspect available capacity, technology, writability, lock state, and non-sensitive raw data.

Preflight every write

Smart NFC validates the message, connects to one tag, verifies read/write status and capacity, and reads the prior NDEF before it writes.

Physical undo, not a promise

For 20 seconds after a successful write, undo can rewrite the saved prior NDEF to a tag. It requires another physical scan and is not an automatic rollback.

Ten supported record types

Everyday records

Create URL, plain-text, email, phone, SMS, and geographic-location records with typed validation before a session begins.

Structured records

Compose Wi-Fi network, contact card, app-launch, and custom MIME/data records while seeing an estimated payload size.

Honest NFC boundaries

Smart NFC is not a payment-card reader, access-card tool, Apple Wallet utility, tag cloner, protected-card bypass, or proprietary hardware programmer.

Local history without exposing secrets

Scan and creation history

Keep scanned and written tags inside their owning Home and Write surfaces, with favorites, filters, sorting, details, templates, and reuse actions.

Sensitive fields in Keychain

Wi-Fi credentials and contact details needed for later writes use device-only Keychain storage. Core Data keeps redacted metadata and UUID references instead of plaintext secrets.

One scan and one write free

URL is the free record type. Lifetime Access adds unlimited scans and writes plus all ten record types through one family-shareable purchase. No subscription.

Maker note

Why every NFC write gets a preflight

A tag write changes a physical object, so speed cannot be the only standard. Smart NFC validates the typed record, tag capacity, write state, and prior NDEF before changing anything. Even undo stays honest: it requires the original saved message and another physical scan. The app never labels a remote database action as a rollback.

Daniel · solo developer behind Crafter Apps

Smart NFC questions

Which tags can Smart NFC write?

It works with compatible, writable NDEF tags that Core NFC can access. Capacity, lock state, and supported technology are checked during the physical session.

Is undo automatic?

No. For a short period after a successful write, Smart NFC can offer the prior NDEF message, but restoring it requires another scan of a compatible writable tag.

Can it read payment or access cards?

No. Smart NFC is not a payment-card reader, access-card tool, Apple Wallet utility, tag cloner, or protected-card bypass.

What is available free?

The free experience includes one scan, one write, and URL records. Lifetime Access adds unlimited scans and writes plus all supported record types with no subscription.