Comparison

Sentry Interactive vs NFC Tap

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

Sentry Interactive4 screens
NFC Tap4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Sentry Interactive versus NFC Tap: the parameters behind the verdict, then further details
ParameterSentry InteractiveNFC Tap
PriceFreeFree
Rating2.6 (14 ratings)4.2 (229 ratings) — better
Positive reviews13.3% of reviews55.3% of reviews — better
Number of ratings14229 — better
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.5 — better16.6
Further details — not scored
Size43 MB29 MB
Age rating4+4+
DeveloperDoordeck LimitedSTMicroelectronics

Customer experience

Sentry Interactive

All ratings14 ratings
Positive35.7%
Neutral14.3%
Negative50.0%
Written reviews15 reviews
Positive13.3%
Neutral13.3%
Negative73.3%

NFC Tap

All ratings219 ratings
Positive79.5%
Neutral6.8%
Negative13.7%
Written reviews76 reviews
Positive55.3%
Neutral3.9%
Negative40.8%

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 more
  • 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 more
  • Remove automatic tag scan prompt on app open

In-app purchases

None

Sentry Interactive

No in-app purchases

None

NFC Tap

No in-app purchases

Questions

Is Sentry Interactive free?
Sentry Interactive is free to download, with no in-app purchases.
Is NFC Tap free?
NFC Tap is free to download, with no in-app purchases.
Which has better reviews, Sentry Interactive or NFC Tap?
NFC Tap is rated higher. Sentry Interactive averages 2.6 out of 5 from 14 ratings, while NFC Tap averages 4.2 from 229 ratings.
Do Sentry Interactive or NFC Tap have ads?
Neither Sentry Interactive nor NFC Tap shows ads.
Which is updated more often, Sentry Interactive or NFC Tap?
Sentry Interactive ships an update every 3 weeks, and NFC Tap every 2 months. Most recently, Sentry Interactive was updated on August 30, 2026 and NFC Tap on September 21, 2026.

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