# IsI Browser vs DefensX Web Browser

The clearest difference is review sentiment: IsI Browser at 100% against DefensX Web Browser's 50%. IsI Browser also leads on rating (3.5 vs 3.0) and iOS requirement (11.0 vs 14.7). DefensX Web Browser's advantage is update cadence (every 3 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

IsI Browser holds the better App Store score, 3.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 100% of IsI Browser's written reviews are positive against 50% of DefensX Web Browser's.

IsI Browser ships an update every 2 months, DefensX Web Browser every 3 weeks. Both last shipped on June 1, 2026.

## The numbers

| Metric | IsI Browser | DefensX Web Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/isi-browser/id1352276474/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/defensx-web-browser/id1545035409/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 15 MB | 4 MB |
| Requires iOS | **11.0** | 14.7 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Dominic Barra](https://appshunter.io/developer/891093115) | [Isoolate Inc.](https://appshunter.io/developer/1545035411) |

## What reviewers say

### IsI Browser

[App page](https://appshunter.io/ios/app/isi-browser/id1352276474)

A fast, free web browser offering a secure and simple browsing experience. It provides quick access to websites with an easy-to-use interface, leveraging Apple's security features. The app is currently under development with plans for future feature additions.

**Highlights:** Fast web browsing, Free to use, High security, Simple interface, Quick website access, Under development

**Features:** macOS Compatibility

**In-app purchases:** none


### DefensX Web Browser

[App page](https://appshunter.io/ios/app/defensx-web-browser/id1545035409)

This application offers advanced cybersecurity by isolating users from web and SaaS application threats. It provides protection for users working remotely on any device and network through unique isolation technologies.

**Highlights:** Application-driven cybersecurity, Patent-pending isolation technologies, Protection from web threats, Protection from SaaS application threats, Works on any device and network

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IsI Browser free?

IsI Browser is free to download, with no in-app purchases.

### Is DefensX Web Browser free?

DefensX Web Browser is free to download, with no in-app purchases.

### Which has better reviews, IsI Browser or DefensX Web Browser?

IsI Browser is rated higher. IsI Browser averages 3.5 out of 5 from 2 ratings, while DefensX Web Browser averages 3.0 from 2 ratings.

### Do IsI Browser or DefensX Web Browser have ads?

Neither IsI Browser nor DefensX Web Browser shows ads.

### Which is updated more often, IsI Browser or DefensX Web Browser?

IsI Browser ships an update every 2 months, and DefensX Web Browser every 3 weeks. Most recently, IsI Browser was updated on June 1, 2026 and DefensX Web Browser on June 1, 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.*