# Sentry Interactive vs NFC TagKit

The clearest difference is review sentiment: NFC TagKit at 100% against Sentry Interactive's 13%. NFC TagKit also leads on rating (4.0 vs 2.6). Sentry Interactive's advantage is update cadence (monthly vs every 4 months) and ratings volume (14 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NFC TagKit holds the better App Store score, 4.0 against 2.6. That said, the two scores are not equally well evidenced: Sentry Interactive has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 13% of Sentry Interactive's written reviews are positive against 100% of NFC TagKit's.

Sentry Interactive ships an update monthly, NFC TagKit every 4 months. The most recent releases landed on September 30, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Sentry Interactive | NFC TagKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (14 ratings)](https://appshunter.io/ios/app/sentry-interactive/id1164433305/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/nfc-tagkit/id1593858521/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 13.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free | Free |
| Size | 44 MB | 8 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Doordeck Limited](https://appshunter.io/developer/1115161254) | [CoreWillSoft GmbH](https://appshunter.io/developer/1593858523) |

## What reviewers say

### Sentry Interactive

[App page](https://appshunter.io/ios/app/sentry-interactive/id1164433305)

This app allows you to access your office or building with your iPhone or Apple Watch. Share access with others easily and securely using bank-level encryption. Multiple convenient unlock methods are available for quick entry.

**Highlights:** Tap to unlock office access, Share access with email, Apple Watch integration, 2-factor bank-level encryption, Convenient unlock methods, Real-time insights

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

**In-app purchases:** none


### NFC TagKit

[App page](https://appshunter.io/ios/app/nfc-tagkit/id1593858521)

This app allows you to read and write data to various types of RFID tags. It can display detailed information about transponders and supports creating and writing NDEF records on MIFARE® DESFire® tags.

**Highlights:** Read transponder information (type, manufacturer, serial number), Display NDEF record data (URL, text, contact), Read data from MIFARE® DESFire® tags, Write files and NDEF records on MIFARE® DESFire® tags, Supports various tag types (MIFARE, Ntag, FeliCa, ISO)

**In-app purchases:** none


## Frequently asked questions

### Is Sentry Interactive free?

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

### Is NFC TagKit free?

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

### Which has better reviews, Sentry Interactive or NFC TagKit?

NFC TagKit is rated higher. Sentry Interactive averages 2.6 out of 5 from 14 ratings, while NFC TagKit averages 4.0 from 1 ratings.

### Do Sentry Interactive or NFC TagKit have ads?

Neither Sentry Interactive nor NFC TagKit shows ads.

### Which is updated more often, Sentry Interactive or NFC TagKit?

Sentry Interactive ships an update monthly, and NFC TagKit every 4 months. Most recently, Sentry Interactive was updated on September 30, 2026 and NFC TagKit on June 10, 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.*