Comparison

SafeToOpen Browser Security vs Quantum Shield

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

Head to head
About

SafeToOpen Browser Security

This browser extension provides real-time cybersecurity by blocking phishing pages, scams, and malicious websites. It uses advanced AI to detect threats before they cause harm, protecting your personal information and offering peace of mind while browsing.

Highlights
  • Real-time phishing defense
  • Data protection at browser level
  • AI-powered threat detection
  • Lightweight performance
  • Privacy-focused design
  • No sign-up required
Features
Read full description

SafeToOpen — Smarter Protection from Online Threats Get proactive online security with SafeToOpen, a lightweight browser extension that blocks phishing pages, scams, and malicious websites the moment they appear. Powered by VisionAI and one of the largest live feeds of unsafe domains, SafeToOpen shields you from zero-day threats before they cause damage — giving individuals, businesses, and IT teams instant peace of mind with every click. KEY FEATURES - Real-Time Phishing Defense Stops malicious websites before they load, including brand-new zero-day phishing pages that mimic trusted brands. - Data Protection at the Browser Level Prevents passwords, payments, and private information from being submitted on risky websites. - VisionAI-Powered Detection Finds hidden threats and reduces false positives using visual analysis and behavioral checks. - Lightweight Performance Runs quietly in the background without slowing you down — ideal for both personal use and enterprise deployments. - Privacy by Design SafeToOpen never tracks or sells your browsing data. Analysis happens within your own environment or private cloud. WHY SAFETOOPEN? • No sign-up required — just install and start browsing safely • Free for personal use, with no ads or hidden costs • Trusted by over 40,000 brands worldwide • ISO/IEC 27001:2022 certified • Verified as an official cybersecurity vendor FOR BUSINESSES & IT TEAMS Protect employees and customers with real-time online security. Get centralized management, visibility, and advanced phishing protection across your entire workforce. Don't leave your security to chance. Add SafeToOpen and browse with confidence.

About

Quantum Shield

Features
Read full description

Before you reply, make a payment, or click a link, check it out. Quantum Shield helps you detect signs of a potential scam in messages, links, images, audio files, and screenshots. Share or upload any content that makes you suspicious, and get a clear assessment so you can decide what to do next with greater peace of mind. You can use Quantum Shield to check: * Suspicious SMS and WhatsApp messages * Emails asking for personal information, payments, or codes * Links that might lead to fake websites * Screenshots of conversations or ads * Images and audio files with possible signs of fraud Quantum Shield analyzes known fraud patterns and shows you potential red flags, explained in simple terms. It does not replace your own judgment or legal or financial advice. In an urgent situation or if you suspect fraud, also contact your bank, platform, or the relevant institution. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage them in your App Store account settings after purchase. Terms of Use (EULA): https://qshield.es/terminos Privacy Policy: https://qshield.es/privacidad

Screenshots

SafeToOpen Browser Security4 screens
Quantum Shield4 screens

Verdict

The call

The clearest difference is in-app purchases: SafeToOpen Browser Security at none against Quantum Shield's 4. Quantum Shield's advantage is iOS requirement (13.0 vs 16.4). On price, update cadence, ads and device support 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. Quantum Shield sells 4 in-app purchases, starting at $3.99 per month. SafeToOpen Browser Security asks for nothing beyond the download.

UpkeepUpdate frequency

SafeToOpen Browser Security ships an update every 6 days, Quantum Shield every 4 days. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
SafeToOpen Browser Security versus Quantum Shield: the parameters behind the verdict, then further details
ParameterSafeToOpen Browser SecurityQuantum Shield
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 daysEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.413.0 — better
Further details — not scored
Size25 MB24 MB
Age rating4+4+
DeveloperSafeToOpen LtdQuantum Secure Labs SL

In-app purchases

None

SafeToOpen Browser Security

No in-app purchases

4 purchases

Quantum Shield

Subscriptions4
  • Plus Mensual$3.991 Month
  • Shield Mensual$8.991 Month
  • Plus Anual$25.001 Year
Show 1 more
  • Shield Anual$69.001 Year

Questions

Is SafeToOpen Browser Security free?
SafeToOpen Browser Security is free to download, with no in-app purchases.
Is Quantum Shield free?
Quantum Shield is free to download, with in-app purchases available.
Do SafeToOpen Browser Security or Quantum Shield have ads?
Neither SafeToOpen Browser Security nor Quantum Shield shows ads.
Which is updated more often, SafeToOpen Browser Security or Quantum Shield?
SafeToOpen Browser Security ships an update every 6 days, and Quantum Shield every 4 days. Most recently, SafeToOpen Browser Security was updated on October 18, 2026 and Quantum Shield on October 11, 2026.

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