Sentry Interactive vs NFC TagKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentry Interactive
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.
- Tap to unlock office access
- Share access with email
- Apple Watch integration
- 2-factor bank-level encryption
- Convenient unlock methods
- Real-time insights
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Never worry about losing or forgetting your physical keycard or fob again, with Sentry Interactive you can store all your digital keys for multiple buildings in one place and unlock doors faster and more securely than ever using the Sentry Interactive iOS app. Designed for reliability, speed, and ease of use whether unlocking a single door or accessing multiple sites. With a simple UI design, lightning fast launch speeds, and high security and stability levels, users can unlock doors in less than 0.5 seconds using NFC tap-to-unlock technology, QR code scan, or using our iOS Widget. Access the Sentry Interactive app instantly via background NFC by simply tapping the NFC Smart Access Tile next to the door you wish to unlock. This will take you directly to the app, where you can unlock the door. Mobile credentials stored in the Sentry Interactive app are encrypted at rest and adhere to NIST cybersecurity best practices. Don’t have the Sentry Interactive mobile access software integrated with the access control systems in your buildings yet? Get in touch or find out more at https://sentryinteractive.com
NFC TagKit
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.
- 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)
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NFCTagKit is an application for working with RFID tags. It provides such functions as reading different kinds of transponders and writing on MIFARE® DESFire® tags. Activating a reading function of the application displays all necessary information about the transponders: • tag type and manufacturer • technologies • serial number • total memory size • filled data volume • etc. Besides that, there is all the information about NDEF records and all the data on the card for such formats as • URL • text message • contact information • etc. One of the key advantages is reading the data from MIFARE® DESFire® transponders, including applications, files, and keys. Activating a writing function of the app grants the possibility to use the demo of the CoreWillSoft GmbH solution. The users can create and write files on the MIFARE® DESFire® tags and make different types of NDEF records. The NFCTagKit App supports such types of tags, as: • MIFARE® DESFire® EV1 • MIFARE® DESFire® EV2 • MIFARE® Ultralight® • MIFARE® Ultralight® C • MIFARE® Ultralight® EV1 • Ntag 213 • Ntag 215 • ISO15693 • FeliCa • ISO7816 (ISO14443-4 type A / B tag with ISO7816 communication protocol) The full functionality of our solution is available for ordering on the CoreWillSoft GmbH website. We are providing the decisions for all kinds of businesses that use RFID technologies and mobile identification.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sentry Interactive | NFC TagKit |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (14 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 13.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 1 |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.5 — better | 15.6 |
| Further details — not scored | ||
| Size | 44 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Doordeck Limited | CoreWillSoft GmbH |
Customer experience
Sentry Interactive
NFC TagKit
In-app purchases
Sentry Interactive
No in-app purchases
NFC TagKit
No in-app purchases
Questions
Is Sentry Interactive free?
Is NFC TagKit free?
Which has better reviews, Sentry Interactive or NFC TagKit?
Do Sentry Interactive or NFC TagKit have ads?
Which is updated more often, Sentry Interactive or NFC TagKit?
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