# xEngine for Safari vs Extension AI

The clearest difference is rating: xEngine for Safari at 3.3 against Extension AI's 1.0. xEngine for Safari also leads on review sentiment (50% vs 40%) and ratings volume (6 vs 1). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

xEngine for Safari costs $1.99 and Extension AI $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

xEngine for Safari holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: xEngine for Safari has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of xEngine for Safari's written reviews are positive against 40% of Extension AI's.

xEngine for Safari ships an update every 6 months, Extension AI every 10 months. The most recent releases landed on September 20, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | xEngine for Safari | Extension AI |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | **[3.3 (6 ratings)](https://appshunter.io/ios/app/xengine-for-safari/id1663123715/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/extension-ai/id6742454059/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **50.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 10 months |
| Monetization | Paid | Paid |
| Size | 6 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | +4 | 4+ |
| Developer | [磊 汪](https://appshunter.io/developer/1063627762) | [Pierre Stanislas](https://appshunter.io/developer/1261009329) |

## What reviewers say

### xEngine for Safari

[App page](https://appshunter.io/ios/app/xengine-for-safari/id1663123715)

This utility app allows users to customize their default search engine within Safari. It supports a wide variety of popular and AI-powered search engines, and enables users to add their own custom options while prioritizing privacy through local processing.

**Highlights:** Customize Safari's default search engine, Support for popular search engines, Add custom AI search engines, Local data processing for privacy, Manage your own search engines

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


### Extension AI

[App page](https://appshunter.io/ios/app/extension-ai/id6742454059)

Enhance your web browsing with an AI assistant that summarizes, fact-checks, and explains content directly within your browser. Interact with AI to get concise summaries, verify information, and understand complex topics easily.

**Highlights:** Summarize articles, Fact-check information, Explain content (ELI5), Translate text, Generate questions, Analyze entire webpages

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is xEngine for Safari free?

xEngine for Safari costs $1.99, with no in-app purchases.

### Is Extension AI free?

Extension AI costs $2.99, with no in-app purchases.

### Which has better reviews, xEngine for Safari or Extension AI?

xEngine for Safari is rated higher. xEngine for Safari averages 3.3 out of 5 from 6 ratings, while Extension AI averages 1.0 from 1 ratings.

### Do xEngine for Safari or Extension AI have ads?

Neither xEngine for Safari nor Extension AI shows ads.

### Which is updated more often, xEngine for Safari or Extension AI?

xEngine for Safari ships an update every 6 months, and Extension AI every 10 months. Most recently, xEngine for Safari was updated on September 20, 2026 and Extension AI on September 5, 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.*