# NFC Tap — Read and Write ST25 NFC Tags

> Read and write NFC tags, interact with NDEF messages, and perform automated actions. (iPhone/iPad app by STMicroelectronics International N.V..)

- Source: https://appshunter.io/ios/app/nfc-tap/id1278913597 (this page in markdown: same URL + `.md`)
- Developer: [STMicroelectronics International N.V.](https://appshunter.io/developer/1801774735)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.19/5 from 229 App Store ratings · 76 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 29 MB
- Languages: English, Chinese, Chinese
- Released: 2017-11-01
- Data updated: 2026-08-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/nfc-tap/id1278913597/reviews.md

## What is NFC Tap?

The NFC Tap iOS App leverages on the new NFC core feature of iOS 17, supporting the read an write of NFC 
tags from  iPhone 7 and later devices. It gives users a new experience based on the tag's NDEF content, making it easier and faster to perform recorded actions as described below. 

Main Features:
• Support every STMicroelectronics ST25 Type5 & Type4A series tags.
• App Clip based on URL https://www.myst25.com/clip
• Read/Write user memory for Type5 tags. This allows user to read, write or update the content of any Type5 tags.
• ISO15693/NFC Type5 commands list User Interface. This allows user to manage all ISO15693 commands.
• ISO15693/NFC Type5 custom commands list User Interface
• Fast Transfer Mode using STMicroelectronics ST25DV-I2C and ST25DVC tags.
• PWM Control user interface for STMicroelectronics ST25DV-PWM tags.

• Read/Write any kinds of NDEF Messages, NFC Forum compliant (URL, Text, SMS, email, Call, Map, VCard, Bluetooth, Wi-Fi®, Mime and Externals)

• Universal Link with URL : https://www.myst25.com
• Custom App URL Scheme “nfctap://”:
	- This allows user to open our iOS app from any other iOS app or from the safari browser using the custom URL scheme “nfctap://”

In Details, the App features several functions enabled by the NFC tag content:
- Connect to Wifi devices identified by its SSID, Key password and encryption type.
- Connect to Bluetooth devices: Facilitates the pairing with Bluetooth Low Energy (BLE) devices. After tapping a tag with the phone, the NFC Tap iOS App will recognize any Bluetooth pairing NDEF record and connect the phone directly to the specified device.

- Open a URL in a browser: Opens a web page to the URL contained in the tag's NDEF record.

- Get contact information: Displays and saves contact information (including ID picture) by tapping a tag containing a business card(vCard) message.

- Geolocalize a position: Opens Apple Maps to the GPS location stored in the tag being tapped.

- Initiate an SMS or Email: Opens the relevant email or SMS application with information contained in the tag being tapped. The user can then choose to send the email/SMS or edit it before sending. Use cases include, but are not limited to, customer service information for warranty or loyalty programs.

- Initiate a phone call: Opens the phone service to the number contained in the tag's NDEF message.

- Read a Text: Displays the text message contained in the tag being tapped.

- Mime NDEF exemples: MimeType = application/pdf / MimeData = userManual.pdf
- External NDEF exemples: application = video ; type = mpeg ; Data = video.mov

Additionally, the NFC Tap App application include Bluetooth pairing with a ST25DV discovery board.

## Key features

- Read/Write NFC tags
- Support ST25 Type5 & Type4A tags
- Read/Write NDEF Messages (URL, Text, SMS, etc.)
- Connect to Wi-Fi devices
- Pair Bluetooth devices
- Initiate calls, SMS, and emails
- Control ISO15693 commands

## What do users think of NFC Tap?

Overall sentiment: mixed

**Pros**

- 👍 Easy to use interface
- 💡 Handy for development
- 🚀 Works as intended (initially)
- 👍 Great color scheme
- 👍 Simple navigation
- 👍 Sophisticated interface
- 👍 Customizable interface
- 👍 Insane technology
- 👍 Broad spectrum app
- 👍 Very practical interface
- 👍 Easy to learn from
- 👍 Good for advice
- 👍 Strong app
- 👍 Many useful features
- 👍 Stable performance (after update)
- 👍 Complete NFC reader
- 👍 Reliable app
- 👍 Easy interface
- 👍 Comprehensive features

**Cons**

- 🐛 Does not work anymore
- 🐛 Unable to write to tags
- 🐛 Error messages
- 🐛 Not user friendly
- 🐛 Hard to navigate
- 🐛 Expensive paid service
- 🐛 Struggling to register chip
- 🐛 Broken app
- 🐛 Crashes when scanning
- 🐛 Worked once then stopped
- 🐛 No longer works
- 🐛 Unusable on iPhone
- 🐛 Password protection bug on iOS
- 🐛 Can't enter password on iPhone
- 🐛 App forgets command on iPhone
- 🐛 Doesn't work
- 🐛 Not working
- 🐛 Failed to read tags
- 🐛 Confusing workflow
- 🐛 Cannot import bin files
- 🐛 Awful update
- 🐛 Required to scan tag repeatedly
- 🐛 CCFile Error on iPhone
- 🐛 Terrible app
- 🐛 Scanner does not work
- 🐛 Not working on iPhone SE
- 🐛 Messy source code

**Commonly reported bugs**

- Unable to write to tags
- Error indicating need to read tag first
- No longer works
- Cannot read, edit, or write back memory to 15693 tag
- Crashing when scanning NXP Mifare
- Error message: 'need to read a card on the main screen'
- App closes when scanning NXP Mifare
- Password protection bug on iOS (cannot enter password)
- CCFile Error with Type 5 chips on iPhone
- Required to scan tag before reading/writing memory
- Throws an error for CCFile
- Unable to read ST25 chips on iPhone

**Most requested features**

- Display NDEF record in HEX
- Fix password protection bug on iOS
- Allow importing bin files
- Improve user-friendliness for beginners
- Connect Digimon Vital Bracelet with VB Lab
- Remove automatic tag scan prompt on app open

## Recent user reviews (10 of 76)

All indexed reviews: https://appshunter.io/ios/app/nfc-tap/id1278913597/reviews.md

### 4/5 — S18.d02.g13

*2026-06-13, version 7.9*

G

### 1/5 — Не работает

*2026-04-15, version 7.9*

Вылетает при сканировании

### 5/5 — Çiğdem

*2026-04-12, version 7.9*

Jjj

### 2/5 — Kok ndk bsa buta e money

*2026-03-25, version 7.9*

Kok ndk bsa buat cek e money

### 1/5 — Gak guna

*2026-03-22, version 7.9*

Sampah

### 4/5 — Password

*2026-03-09, version 7.9*

Unfortunally, this app cannot set and reset a password for the write function of the tag.

### 1/5 — buggy

*2026-03-06, version 7.9*

it crashes when i hold a tag to read

### 2/5 — Olin

*2026-01-21, version 7.9*

The

### 1/5 — Sampah

*2025-12-21, version 7.9*

Tai

### 5/5 — nFC Paying

*2025-12-02, version 7.9*

Homekit

## Frequently asked questions about NFC Tap

### What does the NFC Tap app do?

The NFC Tap app allows you to read and write NFC tags using your iPhone. It supports various STMicroelectronics ST25 NFC tags and can interpret different NDEF message formats, enabling you to perform actions like connecting to Wi-Fi, pairing Bluetooth devices, opening URLs, and more directly from the tag.

### What types of NFC tags are supported?

The app supports STMicroelectronics ST25 Type5 and Type4A series tags. It also provides user interfaces for managing ISO15693 commands and custom commands for Type5 tags.

### Is this app free to use?

Yes, the NFC Tap app is available for free. There are no in-app purchases or advertisements mentioned in the provided description.

### What are some common use cases for this app?

Common use cases include quickly connecting to Wi-Fi networks, pairing with Bluetooth devices, opening specific websites, initiating SMS or email messages with pre-filled content, making phone calls, and displaying text or contact information stored on an NFC tag.

### What iOS versions and devices are compatible with NFC Tap?

The app leverages the NFC core feature of iOS 17 and is compatible with iPhone 7 and later devices. It also features an App Clip for quick access.

## Version history (last 5 releases)

### 7.10 — 2026-07-02

Handles ManageGpo ST25 Commands

### 7.9 — 2025-11-25

Fix issue in VCard NDEF Editor

### 7.8 — 2025-08-20

fix crash when writing in memory fro sT25DVxxKC tag and password required

### 7.7 — 2025-06-20

ST25TVxxC new privacy mode

### 7.6 — 2024-11-14

Support of ST25TA02K & ST25TA02KB

## Apps similar to NFC Tap

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [NFC.cool Tools Tag Reader](https://appshunter.io/ios/app/nfccool-tools-tag-reader/id1249686798) | 4.5 (6,652) | Free | Utilities |
| [NFC Tools](https://appshunter.io/ios/app/nfc-tools/id1252962749) | 4.6 (13,422) | Free | Utilities |
| [Smart NFC Tools: Read & Write](https://appshunter.io/ios/app/smart-nfc-tools-read-and-write/id1527587931) | 4.6 (468) | Free | Utilities |
| [NFC Reader - Tag Scanner](https://appshunter.io/ios/app/nfc-reader-tag-scanner/id1324286598) | 3.7 (43) | Free | Utilities |
| [NFC Tag Manager](https://appshunter.io/ios/app/nfc-tag-manager/id1479339635) | 4.7 (136) | Free | Utilities |
| [NFC-Helper](https://appshunter.io/ios/app/nfc-helper/id1595305488) | 4.0 (26) | Free | Utilities |

## More apps by STMicroelectronics International N.V.

- [ST op-amps](https://appshunter.io/ios/app/st-op-amps/id574823376)
- [STM32 Finder](https://appshunter.io/ios/app/stm32-finder/id864903472)
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- [STPOWER MOSFET Finder](https://appshunter.io/ios/app/stpower-mosfet-finder/id1069374684)
- [ST IGBT Finder](https://appshunter.io/ios/app/st-igbt-finder/id1137037249)
- [ST VIPower Smart Finder](https://appshunter.io/ios/app/st-vipower-smart-finder/id1163684157)

All apps by STMicroelectronics International N.V.: https://appshunter.io/developer/1801774735

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*