# SafeToOpen Browser Security vs Quantum Shield

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.

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.

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.

## The numbers

| Metric | SafeToOpen Browser Security | Quantum Shield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/safetoopen-browser-security/id1588042602/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Monetization | Free | — |
| Size | 25 MB | 24 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SafeToOpen Ltd](https://appshunter.io/developer/1501293285) | [Quantum Secure Labs SL](https://appshunter.io/developer/1895611135) |

## What reviewers say

### SafeToOpen Browser Security

[App page](https://appshunter.io/ios/app/safetoopen-browser-security/id1588042602)

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:** macOS Compatibility, Safari Extension, Vision Pro support

**In-app purchases:** none


### Quantum Shield

[App page](https://appshunter.io/ios/app/quantum-shield-anti-scam/id6764045374)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Mensual | $3.99 | per month |
| Shield Mensual | $8.99 | per month |
| Plus Anual | $25.00 | per year |
| Shield Anual | $69.00 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*