# MasterKey vs NFC Tag Reader and Writer

The clearest difference is in-app purchases: MasterKey at none against NFC Tag Reader and Writer's 2. MasterKey also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. NFC Tag Reader and Writer sells 1 one-off in-app purchase. MasterKey asks for nothing beyond the download.

MasterKey ships an update every 3 weeks, NFC Tag Reader and Writer every 6 months. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MasterKey | NFC Tag Reader and Writer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.2 (6 ratings)](https://appshunter.io/ios/app/nfc-tag-reader-and-writer/id1578670172/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 24 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SMARTCHIP MICROELECTRONICS CORP.](https://appshunter.io/developer/872823142) | [Kushal Patel](https://appshunter.io/developer/1315569101) |

## What reviewers say

### MasterKey

[App page](https://appshunter.io/ios/app/masterkey/id1359619946)

**Features:** macOS Compatibility

**In-app purchases:** none


### NFC Tag Reader and Writer

[App page](https://appshunter.io/ios/app/nfc-tag-reader-and-writer/id1578670172)

This utility app allows you to read and write data to NFC tags using your device. It supports various data types like contact details, links, and plain text, and can also erase existing tag information. An internet connection is not required for its core functionality.

**Highlights:** Read and write NFC tags, Supports contact details, links, email, geo-location, app launch, plain text, SMS, Erase tag data, No internet connection required, Compatible with most famous tags, History log

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad free version | $7.99 | one-time |


## Frequently asked questions

### Is MasterKey free?

MasterKey is free to download, with no in-app purchases.

### Is NFC Tag Reader and Writer free?

NFC Tag Reader and Writer is free to download, with in-app purchases available.

### Do MasterKey or NFC Tag Reader and Writer have ads?

NFC Tag Reader and Writer shows ads; MasterKey does not.

### Which is updated more often, MasterKey or NFC Tag Reader and Writer?

MasterKey ships an update every 3 weeks, and NFC Tag Reader and Writer every 6 months. Most recently, MasterKey was updated on October 4, 2026 and NFC Tag Reader and Writer on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*