# NFC Reader / Writer vs uCalculator

The clearest difference is price: NFC Reader / Writer at Free against uCalculator's $4.99. NFC Reader / Writer also leads on update cadence (monthly vs every 13 months). uCalculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

NFC Reader / Writer is free to download; uCalculator costs $4.99 up front. NFC Reader / Writer sells 1 one-off in-app purchase. uCalculator asks for nothing beyond the download.

NFC Reader / Writer ships an update monthly, uCalculator every 13 months. The most recent releases landed on July 8, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | NFC Reader / Writer | uCalculator |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[3.6 (19 ratings)](https://appshunter.io/ios/app/nfc-reader-writer/id1286968328/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 16.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 13 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 18.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Sowers](https://appshunter.io/developer/592605673) | [伟锋 阮](https://appshunter.io/developer/994270912) |

## What reviewers say

### NFC Reader / Writer

[App page](https://appshunter.io/ios/app/nfc-reader-writer/id1286968328)

This utility app allows you to read, save, and share information stored on NFC tags. It can extract data like URLs, contact cards, and text messages. Note that NFC tag reading requires an iPhone 7 or newer.

**Highlights:** Read NFC tags, Save tags for later, Share tag data, Save contacts from tags, Open URLs from tags, Display text messages

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- ✅ Works well for NFC reading on compatible devices
- 👍 Nice, clean user interface design
- 🎯 Effective for product traceability and information display
- 💪 Reliable performance on iPhone 7 and newer models
- 🔧 Useful for reading various NFC tag types and formats

**What reviewers complain about**

- 🐛 App crashes on startup for unsupported devices
- ❌ Inconsistent NFC reading functionality across devices
- 📱 Limited compatibility - only works on iPhone 7+
- 😕 Poor documentation and unclear instructions
- ⚠️ Misleading compatibility information in app store

**Reported bugs**

- App crashes immediately on launch for devices without NFC support
- NFC reading fails on iPhone 6, 6S, and SE despite claimed compatibility
- Session invalidated - feature not supported error messages
- Apple Pay popup appears when scanning NFC tags
- Unreadable symbols displayed on screen during scanning

**Requested features**

- Support for older iPhone models (iPhone 6, 6S, SE)
- Ability to open amiibo files from Google Drive
- Italian language support
- Better error handling and user notifications
- Support for writing NFC tags on all compatible devices


### uCalculator

[App page](https://appshunter.io/ios/app/ucalculator/id1471865233)

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

**In-app purchases:** none


## Frequently asked questions

### Is NFC Reader / Writer free?

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

### Is uCalculator free?

uCalculator costs $4.99, with no in-app purchases.

### Do NFC Reader / Writer or uCalculator have ads?

NFC Reader / Writer shows ads; uCalculator does not.

### Which is updated more often, NFC Reader / Writer or uCalculator?

NFC Reader / Writer ships an update monthly, and uCalculator every 13 months. Most recently, NFC Reader / Writer was updated on July 8, 2026 and uCalculator on September 13, 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.*