# SKF Machine train alignment vs NFC Tools

The clearest difference is in-app purchases: SKF Machine train alignment at none against NFC Tools's 1. SKF Machine train alignment also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). NFC Tools's advantage is update cadence (every 3 weeks vs every 3 months) and chart position (#159 vs unranked). On price and ads there is nothing between them.

Both are free to download. NFC Tools sells 1 one-off in-app purchase. SKF Machine train alignment asks for nothing beyond the download.

SKF Machine train alignment ships an update every 3 months, NFC Tools every 3 weeks. The most recent releases landed on October 19, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SKF Machine train alignment | NFC Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (15K ratings)](https://appshunter.io/ios/app/nfc-tools/id1252962749/reviews)** |
| Number of ratings | — | **15K** |
| Positive reviews | — | 51.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#159** |
| Size | 69 MB | 9 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SKF](https://appshunter.io/developer/472922971) | [wakdev](https://appshunter.io/developer/1252962748) |

## What reviewers say

### SKF Machine train alignment

[App page](https://appshunter.io/ios/app/skf-machine-train-alignment/id1149906003)

**Features:** macOS Compatibility

**In-app purchases:** none


### NFC Tools

[App page](https://appshunter.io/ios/app/nfc-tools/id1252962749)

**Currently charting:** #159 Top Free · Utilities (US App Store)

Easily read and write data to NFC tags using a straightforward interface. Interact with tag content, view detailed information, and record standard data like contacts, URLs, and WiFi configurations.

**Highlights:** Read NFC tag data, Write standard information to tags, Store VCARDs and URLs, Share contact details, Save tag contents, Configure WiFi and Bluetooth

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NFC Tools - Pro Edition | $3.99 | one-time |

**What reviewers like**

- 🚀 One-time payment for Pro version
- 👍 Easy to use and intuitive interface
- 🚀 Fast NFC tag reading and writing
- 👍 Works well for most use cases
- 💡 Useful for home automation and NFC tag programming

**What reviewers complain about**

- 🐛 Issues with reading/writing contact information
- 🐛 Compatibility problems with certain NFC tags and devices
- 🐛 Unreliable performance for some users
- 💰 Paid features should be included in free version

**Reported bugs**

- Cannot unlock NFC tags after locking them
- Contacts and WiFi records not working as expected
- Inconsistent behavior when reading/writing tags
- Restore purchase feature not functioning properly

**Requested features**

- Add ability to bulk write NFC tags
- Improve compatibility with wpa2 enterprise WiFi settings
- Implement file explorer for loading custom tag data
- Add option to write data to Apple Wallet
- Provide emulator functionality for testing without tags


## Frequently asked questions

### Is SKF Machine train alignment free?

SKF Machine train alignment is free to download, with no in-app purchases.

### Is NFC Tools free?

NFC Tools is free to download, with in-app purchases available.

### Do SKF Machine train alignment or NFC Tools have ads?

Neither SKF Machine train alignment nor NFC Tools shows ads.

### Which is updated more often, SKF Machine train alignment or NFC Tools?

SKF Machine train alignment ships an update every 3 months, and NFC Tools every 3 weeks. Most recently, SKF Machine train alignment was updated on October 19, 2026 and NFC Tools on October 28, 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.*