Instant Guard vs QNAP Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Instant Guard
This app provides a secure VPN connection, allowing you to browse anonymously and protect your financial information on public Wi-Fi. It enables remote access to your home ASUS router, ensuring your privacy and security wherever you go.
- One-click VPN connection
- Secured and encrypted connectivity
- Anonymous browsing
- Change IP address and location
- Remote ASUS router access
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Instant Guard is basing on VPN feature of ASUS Router and only available for manager now. Use the Instant Guard app when you connect to public Wi-Fi and just as you are using safety network at home - ensuring your personal privacy remains safe and financial information protected. Instant Guard allows you easily access to your ASUS router at home while you are away and keeps 100% anonymous while you browser bank, shop and chat with Virtual Private Network (VPN) connection. In the future, this feature will improve to allow to share VPN connection permissions to your friends or family members. Key Feature : 1.One-Click Operation 2.Secured and encrypted connectivity 3.Surf Anonymously 4.Change your IP Address and Location *The ASUS routers sold in the CN region do not support Instant Guard. Instant Guard app supports the following ASUS router. RT-BE96U RT-AXE7800 RT-AX92U RT-AX89X RT-AX88U_Pro RT-AX88U RT-AX86U_PRO RT-AX86U RT-AX86S RT-AX82U_V2 RT-AX82U RT-AX68U RT-AX59U RT-AX58U_V2 RT-AX58U RT-AX57_Go RT-AX57 RT-AX56U RT-AX55 RT-AX5400 RT-AX54 RT-AX53U RT-AX52 RT-AC88U RT-AC86U RT-AC3100 RT-AC5300 GS-AX3000 GS-AX5400 GT6 GT-AC2900 GT-AC5300 GT-AX11000 GT-AX11000_PRO GT-AX6000 GT-AXE11000 GT-AXE16000 TUF-AX3000 TUF-AX3000_V2 TUF-AX4200 TUF-AX5400 TUF-AX6000 ZenWiFi CT8 ZenWiFi XD4 ZenWiFi XD5 ZenWiFi XD6 ZenWiFi XP4 ZenWiFi XT9 ZenWiFi AX (XT8) ZenWiFi AX Hybrid (XC5) ZenWiFi ET8 ZenWiFi Pro ET12 ZenWiFi Pro XT12
QNAP Authenticator
Enhance your account security with this mobile app that provides 2-Step Verification and Passwordless Login. It offers multiple verification methods, including login approval, QR code scanning, and online codes, with TOTP support for offline use and third-party accounts.
- 2-Step Verification
- Passwordless Login
- Login Approval
- QR Code Verification
- Online Verification Code
- Time-based One-Time Password (TOTP)
- Offline TOTP generation
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QNAP Authenticator is a free app that adds an extra layer of security to your accounts by using your mobile device to verify your login. You can authenticate your identity using 2-Step Verification or Passwordless Login and choose from multiple verification methods. 【Requirements】 - QNAP NAS running QTS 5.1.0 (or later) - iOS 15 (or later) 【Major features of QNAP Authenticator】 - Supports 2-Step Verification and Passwordless Login - Supports scanning a QR code to quickly add an account - Supports the following verification methods: 1.Login Approval: Approve a login request with just a tap 2.QR Code: Scan a QR code to verify a login request 3.Online Verification Code: Receive a code sent from your QNAP device for verification 4.Time-based One-Time Password (TOTP): Generate a code automatically renewed for verification Login Approval, QR Code, and Online Verification Code require a connection to your NAS, whereas TOTP can work offline. This method also supports verifying third-party accounts from Google, Microsoft, Facebook, GitHub, and other service providers that have implemented their authentication following the TOTP standard.
Screenshots
Verdict
The clearest difference is rating: Instant Guard at 3.4 against QNAP Authenticator's 2.0. Instant Guard also leads on review sentiment (38% vs 20%) and ratings volume (61 vs 12). On price, update cadence, ads and in-app purchases 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.
Instant Guard holds the better App Store score, 3.4 against 2.0. That said, the two scores are not equally well evidenced: Instant Guard has 61 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 38% of Instant Guard's written reviews are positive against 20% of QNAP Authenticator's.
Instant Guard ships an update every 2 months, QNAP Authenticator every 3 months. The most recent releases landed on September 20, 2026 and September 15, 2026 respectively.
| Parameter | Instant Guard | QNAP Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (61 ratings) — better | 2.0 (12 ratings) |
| Positive reviews | 38.5% of reviews — better | 20.0% of reviews |
| Number of ratings | 61 — better | 12 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 64 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | ASUS | QNAP Systems, Inc. |
Customer experience
Instant Guard
QNAP Authenticator
Bugs and requests
Instant Guard
Reported bugs
31 issues- Auto connection still conflicts
- Cannot connect after current iOS update
- Cellular data severely affected
- Auto protect feature comes on when on cellular network
- IP Address did not change
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- App has stopped working
- No longer works
- Breaks internet connection completely
- Useless - Won't connect
- Stuck at finding router
- Not a VPN as IP address does not change
- Auto protect feature ignores settings
- Share feature simply doesn't work
- iOS 17 still not working
- Stopped working after updating
- Not working with iOS 16.5.1
- No luck on Mac Studio
- Won't connect
- iOS 16.5 incompatible
- Disconnects every hour or so
- Can't share connection
- Connection drops
- Super buggy app
- Terrible app with terrible support
- Worked before, now stopped
- No ability to share connection
- Router not detected
- No Internet connection
- Kills internet connection
- Slower upload compared to OpenVPN
- Router crashed multiple times when connected to WiFi
Requested features
11 requests- Add split tunnelling
- Automatic connection when leaving home network
- Ability to automatically connect/disconnect based on WiFi network
- Shortcuts widget for one-touch control
- Automation capabilities
Show 6 moreShow fewer
- Family sharing option
- Set time for VPN disconnection or make disconnection longer
- Improve auto connect function on iOS
- Fix auto protect feature on cellular
- More information on app and web admin page
- Add option to turn VPN on/off automatically
QNAP Authenticator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Instant Guard
No in-app purchases
QNAP Authenticator
No in-app purchases
Questions
Is Instant Guard free?
Is QNAP Authenticator free?
Which has better reviews, Instant Guard or QNAP Authenticator?
Do Instant Guard or QNAP Authenticator have ads?
Which is updated more often, Instant Guard or QNAP Authenticator?
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