# Krinkle LDAR Tracker vs NFC Reader & Writer

The clearest difference is in-app purchases: Krinkle LDAR Tracker at none against NFC Reader & Writer's 5. Krinkle LDAR Tracker also leads on ads (none vs shown) and iOS requirement (13.2 vs 15.0). NFC Reader & Writer's advantage is update cadence (fortnightly vs every 9 months). On price and device support there is nothing between them.

Both are free to download. NFC Reader & Writer sells 5 in-app purchases, starting at $4.99 per month. Krinkle LDAR Tracker asks for nothing beyond the download.

Krinkle LDAR Tracker ships an update every 9 months, NFC Reader & Writer fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Krinkle LDAR Tracker | NFC Reader & Writer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (106 ratings)](https://appshunter.io/ios/app/nfc-reader-and-writer-tags/id1543670530/reviews)** |
| Number of ratings | — | **106** |
| Positive reviews | — | 13.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 59 MB | 37 MB |
| Requires iOS | **13.2** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Krinkle, LLC](https://appshunter.io/developer/1188803452) | [Yalintech](https://appshunter.io/developer/1530568426) |

## What reviewers say

### Krinkle LDAR Tracker

[App page](https://appshunter.io/ios/app/krinkle-ldar-tracker/id1233331275)

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

**In-app purchases:** none


### NFC Reader & Writer

[App page](https://appshunter.io/ios/app/nfc-reader-and-writer-tags/id1543670530)

This app transforms your iPhone into a comprehensive NFC toolkit. Easily scan and decode various NFC tag types, then write your own custom tags with templates. It also offers advanced insights into tag data and history tracking.

**Highlights:** Read NDEF tags (Text, URL, Wi-Fi, etc.), Advanced tag insights (security, memory), Write custom tags from templates, Quick actions for tag management, Tag history logging and export, NFC compatibility check

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $7.99 | per year |
| Yearly Subscription | $14.99 | per year |
| One time purchase | $10.99 | one-time |
| One time purchase | $24.99 | one-time |


## Frequently asked questions

### Is Krinkle LDAR Tracker free?

Krinkle LDAR Tracker is free to download, with no in-app purchases.

### Is NFC Reader & Writer free?

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

### Do Krinkle LDAR Tracker or NFC Reader & Writer have ads?

NFC Reader & Writer shows ads; Krinkle LDAR Tracker does not.

### Which is updated more often, Krinkle LDAR Tracker or NFC Reader & Writer?

Krinkle LDAR Tracker ships an update every 9 months, and NFC Reader & Writer fortnightly. Most recently, Krinkle LDAR Tracker was updated on November 2, 2026 and NFC Reader & Writer on November 3, 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.*