# Sigma AI Browser vs XDocs

The clearest difference is in-app purchases: XDocs at none against Sigma AI Browser's 4. XDocs also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (13 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Sigma AI Browser sells 4 in-app purchases, starting at $10.00 per month. XDocs asks for nothing beyond the download.

Sigma AI Browser ships an update every 2 months, XDocs every 3 days. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sigma AI Browser | XDocs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (10 ratings)](https://appshunter.io/ios/app/sigma-ai-browser/id6670252712/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 182 MB | 24 MB |
| Requires iOS | 17.0 | **13** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SigmaBrowser OÜ](https://appshunter.io/developer/1762933222) | [BlueBrick Consultants](https://appshunter.io/developer/483922221) |

## What reviewers say

### Sigma AI Browser

[App page](https://appshunter.io/ios/app/sigma-ai-browser/id6670252712)

Experience a faster, more intelligent web with this AI-powered browser. It offers enhanced security, personalized recommendations, and a clutter-free, ad-free environment. Customize your browsing with intuitive tools for seamless navigation and productivity.

**Highlights:** AI chat companion for answers, Blazing fast browsing speeds, Customizable interface, Multi-device sync, User-friendly design

**Features:** Apple Wallet, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sigma Plus Monthly | $10.00 | per month |
| Sigma Pro Monthly | $75.00 | per month |
| Sigma Plus Annually | $96.00 | per year |
| Sigma Pro Annually | $719.99 | per year |


### XDocs

[App page](https://appshunter.io/ios/app/xdocs/id6749516786)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sigma AI Browser free?

Sigma AI Browser is free to download, with in-app purchases available.

### Is XDocs free?

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

### Do Sigma AI Browser or XDocs have ads?

Neither Sigma AI Browser nor XDocs shows ads.

### Which is updated more often, Sigma AI Browser or XDocs?

Sigma AI Browser ships an update every 2 months, and XDocs every 3 days. Most recently, Sigma AI Browser was updated on October 31, 2026 and XDocs on October 30, 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.*