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Source-backed analysis8

Review basis

Research-based review: the AppDuo Editorial Team compiled it from official pages, documentation, app stores, press and user feedback, without hands-on testing. Every claim links to a source with the date it was checked.

8 reference sources

Information updated Nov 11, 2026

How we review
nTrust logo

nTrust Review

Free NCA app that screens scam calls and checks links, bank accounts and QR codes

Editorial Team6.6/10Write the first review

By Official AppDuo editorial team · Fact-checked

  • iOS
  • Android
Free · Free
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Decide at a glance

Our verdict

nTrust is a free app run by Vietnam's National Cybersecurity Association, suited to people who want an extra warning before answering calls, opening links, sending money or scanning QR codes. The trade-offs: no independent accuracy evaluation, no malware scanning on iOS, and an iOS version not updated since October 2024.

Best for: Phone users in Vietnam who want free warnings about suspicious numbers and bank accounts

Skip it if: iPhone users who want malware scanning, since that feature is Android-only

Pros

  • Completely free, with no paid tier
  • One app covers call blocking plus checks for phone numbers, links, bank accounts and QR codes, with malicious-app scanning on Android
  • Per the FAQ, scam-number detection and blocking work without a network connection

Cons

  • No independent evaluation of detection or false-positive rates was found; press coverage is mostly launch news
  • The iOS version has no malware scanning (SGGP attributes this to Apple's policies) and its latest release is still 1.0.6 from 11 October 2024
All pros and cons · Who is it for?

More pros

  • Users can report suspicious numbers, accounts, links or apps, and flag false positives
  • Per VnEconomy, the database held over 1 million records at launch, drawn from ministries and security organisations

More cons

  • Sign-up requires a phone number, yet the website's privacy policy page showed no text when we opened it
  • Ratings are mixed: 3.4/5 on the App Store (250 ratings) versus 4.1/5 on Google Play (736 ratings)

Best for

  • Older relatives who need a simple way to check links and QR codes before tapping

Experience & key features

What nTrust is

nTrust is anti-scam software developed and operated by Vietnam's National Cybersecurity Association (NCA). Per VnEconomy, the Association announced it on 30 July 2024 as a non-profit project funded by social sponsorship rather than the state budget. It is available on Google Play and the App Store.

Key features

The official site lists blocking calls from scam numbers and flagging ad or nuisance numbers in the database; checks for phone numbers, links, bank accounts and QR codes; and scanning for fake or malicious apps. After signing up with a phone number, users must turn on call identification themselves: on iPhone under "Call Blocking & Identification" in Settings, on Android by setting nTrust as the default caller-ID app. Per the user guide, malware scanning is Android-only.

Data and how it works

Per VnEconomy, the database held over 1 million records at launch, compiled from the Ministry of Public Security, the Ministry of Information and Communications, the State Bank of Vietnam and Association members. Per SGGP, about 20 days in the app had roughly 150,000 downloads and received 3,000 to 5,000 reports a day, processed automatically. The Association stresses the app is not a "magic wand": the final decision stays with the user.

More analysis

Price and who it suits

The app is free, so the question is how reliable its data is rather than what it costs. We found no independent accuracy evaluation; user ratings are 4.1/5 on Google Play and 3.4/5 on the App Store. The Android version is updated more often than the iOS one. Readers who need full antivirus may also look at Kaspersky.

Screenshots

First nTrust product image on the App Store (Vietnam)
First nTrust product image on the App Store (Vietnam)
Second nTrust product image on the App Store (Vietnam)
Second nTrust product image on the App Store (Vietnam)
Third nTrust product image on the App Store (Vietnam)
Third nTrust product image on the App Store (Vietnam)

Plans & pricing

Prices last verified Nov 11, 2026

Miễn phí

Personal

Free

The official site, App Store and Google Play all describe the software as completely free. Malware scanning is Android-only.

Free plan limits
There is no paid tier. An account registered with a phone number and OTP is required. Results rely on the database and community reports; when there is no record, the app shows "Chưa có thông tin" (no information).
Free trial
No free trial
Cancellation & refunds

Not applicable; the app is free.

Privacy

Per VnEconomy, the developer says scam and nuisance call screening runs only on the phone and sends nothing to servers; per SGGP, the app sends data to be checked as hashes for matching. The App Store privacy label says "Data Not Collected" and Google Play's Data safety section says no data is collected or shared with third parties; both are self-declared by the developer. Even so, sign-up requires a phone number, and the FAQ lists permissions for the camera, photo library, contacts, calls, drawing over other apps and (on Android) scanning all installed apps. The terms of use defer to a privacy policy, but that page showed no text when we opened it. No independent audit was found.

nTrust alternatives

Kaspersky logo6.8/10

Kaspersky

Long-established antivirus suite with strong lab results and a geopolitical controversy

Paid

Controversies & incidents

Issues documented by the press, regulators, courts or the vendor itself. Every item is sourced; unproven claims are labelled as allegations. Last researched: Nov 11, 2026

No significant controversies or incidents found in the sources we checked.

Frequently asked questions

Is nTrust free?

Yes. The nTrust site, the App Store and Google Play all describe it as completely free.

Who develops nTrust?

Vietnam's National Cybersecurity Association (NCA); the App Store lists the seller as National Cybersecurity Association.

Does nTrust scan for malware on iPhone?

No. The user guide marks malware scanning as Android-only; per SGGP, Apple's policies do not grant apps the access it needs.

Does nTrust need an internet connection?

Per the FAQ, scam-number detection and blocking work offline, but other features need the server, and the app needs a connection to update its number list.

Does "Chưa có thông tin" (no information) mean something is safe?

Not necessarily. The FAQ has an entry on this message but showed no answer when we opened it. Because the app relies on its database and community reports, the message only means there is no record, not that the number, account or link is safe.

Review evidence & sources8

Scores

Ease of use
6.5
Why this score

Features are clear and a step-by-step guide exists, but call blocking needs extra system settings (iOS: Call Blocking & Identification; Android: set nTrust as the default caller-ID and spam app). The website and store descriptions are Vietnamese-only. Ratings of 3.4/5 on the App Store and 4.1/5 on Google Play point to an uneven experience.

Features
6.5
Why this score

Covers call blocking, number, link, account and QR checks and malware scanning, but scanning is Android-only and every result depends on the database and community reports.

Value for money
8.5
Why this score

Completely free with no paid tier; none of the sources opened mention ads or in-app purchases.

Performance
6.0
Why this score

No independent accuracy data. Per SGGP, an NCA representative said the app receives 3,000 to 5,000 reports a day and processes them fully automatically, which has not been independently verified. The iOS version has not been updated since October 2024, while the Android version was updated on 14 August 2026.

Support
6.0
Why this score

Email, phone, a user guide and an FAQ are available, but no chat channel or response-time commitment was found.

Privacy & security
6.0
Why this score

The developer says data is sent as hashes, call screening runs on-device, and both store listings self-declare no data collection. However, sign-up requires a phone number, the app requests broad permissions (contacts, calls, scanning all apps on Android), the privacy policy page showed no text when we opened it, and there is no independent audit.

What users say

Sources

Specs & compatibility
Developer
Hiệp hội An ninh mạng quốc gia (NCA)
Headquarters
Vietnam
Launched
2024
Category
Utilities

Capabilities

  • Mobile app

Platforms

  • iOS
  • Android

Interface languages

  • Vietnamese

Support

  • Email
  • Phone
  • Help center

Change history

  1. Update.Google Play lists the Android version's most recent update as 14 August 2026.
  2. Update.iOS version 1.0.6 released; still the latest iOS version on the App Store when we checked.
  3. Update.Per SGGP, about 20 days after launch the app had roughly 150,000 downloads and over 100,000 regular users.
Full change history (5)
  1. Launch.The National Cybersecurity Association officially announced nTrust, per VnEconomy.
  2. Launch.The App Store lists version 1.0.0 as released on 24 July 2024.
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