Sentry Interactive vs NFC Tap
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 Tap
This app allows users to read and write NFC tags, supporting various tag types and NDEF message formats. It enables quick actions like connecting to Wi-Fi, pairing Bluetooth devices, opening URLs, and initiating calls or messages directly from NFC tags.
- Read/Write NFC tags
- Support ST25 Type5 & Type4A tags
- Read/Write NDEF Messages (URL, Text, SMS, etc.)
- Connect to Wi-Fi devices
- Pair Bluetooth devices
- Initiate calls, SMS, and emails
- Control ISO15693 commands
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The NFC Tap iOS App leverages on the new NFC core feature of iOS 17, supporting the read an write of NFC tags from iPhone 7 and later devices. It gives users a new experience based on the tag's NDEF content, making it easier and faster to perform recorded actions as described below. Main Features: • Support every STMicroelectronics ST25 Type5 & Type4A series tags. • App Clip based on URL https://www.myst25.com/clip • Read/Write user memory for Type5 tags. This allows user to read, write or update the content of any Type5 tags. • ISO15693/NFC Type5 commands list User Interface. This allows user to manage all ISO15693 commands. • ISO15693/NFC Type5 custom commands list User Interface • Fast Transfer Mode using STMicroelectronics ST25DV-I2C and ST25DVC tags. • PWM Control user interface for STMicroelectronics ST25DV-PWM tags. • Read/Write any kinds of NDEF Messages, NFC Forum compliant (URL, Text, SMS, email, Call, Map, VCard, Bluetooth, Wi-Fi®, Mime and Externals) • Universal Link with URL : https://www.myst25.com • Custom App URL Scheme “nfctap://”: - This allows user to open our iOS app from any other iOS app or from the safari browser using the custom URL scheme “nfctap://” In Details, the App features several functions enabled by the NFC tag content: - Connect to Wifi devices identified by its SSID, Key password and encryption type. - Connect to Bluetooth devices: Facilitates the pairing with Bluetooth Low Energy (BLE) devices. After tapping a tag with the phone, the NFC Tap iOS App will recognize any Bluetooth pairing NDEF record and connect the phone directly to the specified device. - Open a URL in a browser: Opens a web page to the URL contained in the tag's NDEF record. - Get contact information: Displays and saves contact information (including ID picture) by tapping a tag containing a business card(vCard) message. - Geolocalize a position: Opens Apple Maps to the GPS location stored in the tag being tapped. - Initiate an SMS or Email: Opens the relevant email or SMS application with information contained in the tag being tapped. The user can then choose to send the email/SMS or edit it before sending. Use cases include, but are not limited to, customer service information for warranty or loyalty programs. - Initiate a phone call: Opens the phone service to the number contained in the tag's NDEF message. - Read a Text: Displays the text message contained in the tag being tapped. - Mime NDEF exemples: MimeType = application/pdf / MimeData = userManual.pdf - External NDEF exemples: application = video ; type = mpeg ; Data = video.mov Additionally, the NFC Tap App application include Bluetooth pairing with a ST25DV discovery board.
Screenshots
Verdict
The clearest difference is rating: NFC Tap at 4.2 against Sentry Interactive's 2.6. NFC Tap also leads on review sentiment (55% vs 13%) and ratings volume (229 vs 14). Sentry Interactive's advantage is update cadence (every 3 weeks vs every 2 months). 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 Tap holds the better App Store score, 4.2 against 2.6. That said, the two scores are not equally well evidenced: NFC Tap has 229 ratings behind it against 14, 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 55% of NFC Tap's.
Sentry Interactive ships an update every 3 weeks, NFC Tap every 2 months. The most recent releases landed on August 30, 2026 and September 21, 2026 respectively.
| Parameter | Sentry Interactive | NFC Tap |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (14 ratings) | 4.2 (229 ratings) — better |
| Positive reviews | 13.3% of reviews | 55.3% of reviews — better |
| Number of ratings | 14 | 229 — better |
| Update frequency | Every 3 weeks — better | Every 2 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 | 16.6 |
| Further details — not scored | ||
| Size | 43 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Doordeck Limited | STMicroelectronics |
Customer experience
Sentry Interactive
NFC Tap
Bugs and requests
Sentry Interactive
Not enough reviews yet to summarise bugs or requests.
NFC Tap
Reported bugs
12 issues- Unable to write to tags
- Error indicating need to read tag first
- No longer works
- Cannot read, edit, or write back memory to 15693 tag
- Crashing when scanning NXP Mifare
Show 7 moreShow fewer
- Error message: 'need to read a card on the main screen'
- App closes when scanning NXP Mifare
- Password protection bug on iOS (cannot enter password)
- CCFile Error with Type 5 chips on iPhone
- Required to scan tag before reading/writing memory
- Throws an error for CCFile
- Unable to read ST25 chips on iPhone
Requested features
6 requests- Display NDEF record in HEX
- Fix password protection bug on iOS
- Allow importing bin files
- Improve user-friendliness for beginners
- Connect Digimon Vital Bracelet with VB Lab
Show 1 moreShow fewer
- Remove automatic tag scan prompt on app open
In-app purchases
Sentry Interactive
No in-app purchases
NFC Tap
No in-app purchases
Questions
Is Sentry Interactive free?
Is NFC Tap free?
Which has better reviews, Sentry Interactive or NFC Tap?
Do Sentry Interactive or NFC Tap have ads?
Which is updated more often, Sentry Interactive or NFC Tap?
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