# Zero Carbon Navi vs StealthOS

The clearest difference is in-app purchases: Zero Carbon Navi at none against StealthOS's 2. Zero Carbon Navi also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. StealthOS sells 2 in-app purchases, starting at $4.99 per month. Zero Carbon Navi asks for nothing beyond the download.

Zero Carbon Navi ships an update fortnightly, StealthOS weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Zero Carbon Navi | StealthOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/stealthos-private-browser/id6756983634/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Freemium |
| Size | 90 MB | 221 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [NextDrive Co.](https://appshunter.io/developer/1005329987) | [Olib AI](https://appshunter.io/developer/1864031901) |

## What reviewers say

### Zero Carbon Navi

[App page](https://appshunter.io/ios/app/zero-carbon-navi/id6475660584)

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

**In-app purchases:** none


### StealthOS

[App page](https://appshunter.io/ios/app/stealthos-private-browser/id6756983634)

This app provides a secure, private browsing experience with advanced anti-fingerprinting, built-in Tor, and encrypted storage. It offers an on-device AI assistant and a virtual desktop environment for enhanced productivity and research.

**Highlights:** Anti-fingerprinting technology, Built-in Tor browser, AES-256 encrypted storage, On-device AI assistant, Virtual desktop environment, Password manager with TOTP, AI-powered phishing detection

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $49.99 | per year |


## Frequently asked questions

### Is Zero Carbon Navi free?

Zero Carbon Navi is free to download, with no in-app purchases.

### Is StealthOS free?

StealthOS is free to download, with in-app purchases available.

### Do Zero Carbon Navi or StealthOS have ads?

Neither Zero Carbon Navi nor StealthOS shows ads.

### Which is updated more often, Zero Carbon Navi or StealthOS?

Zero Carbon Navi ships an update fortnightly, and StealthOS weekly. Most recently, Zero Carbon Navi was updated on October 24, 2026 and StealthOS on October 28, 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.*