# Zblocker vs Fast AI

The clearest difference is rating: Zblocker at 3.7 against Fast AI's 3.0. Zblocker also leads on in-app purchases (none vs 1) and ads (none vs shown). Fast AI's advantage is update cadence (every 2 weeks vs every 5 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Fast AI sells 1 in-app purchase, starting at $5.99 per 7 days. Zblocker asks for nothing beyond the download.

Zblocker holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 7 and 3 respectively.

Zblocker ships an update every 5 months, Fast AI every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Zblocker | Fast AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/zblocker/id1381207192/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/fast-ai-chatbot-assistant/id1663617334/reviews) |
| Number of ratings | **7** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 49 MB | 150 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Naina Technology Solutions](https://appshunter.io/developer/1381207191) | [Advenworks Ltd.](https://appshunter.io/developer/329900469) |

## What reviewers say

### Zblocker

[App page](https://appshunter.io/ios/app/zblocker/id1381207192)

This Safari browser extension offers robust ad-blocking for a cleaner, faster web experience. It automatically removes trackers, pop-ups, videos, and images, while also conserving bandwidth and protecting privacy. Enjoy a more enjoyable and distraction-free browsing session on your iPhone and iPad.

**Highlights:** Blocks online trackers, Removes pop-up ads, Blocks videos and images, Saves bandwidth, Faster page loading, Enhances privacy

**Features:** macOS Compatibility, Safari Extension

**In-app purchases:** none


### Fast AI

[App page](https://appshunter.io/ios/app/fast-ai-chatbot-assistant/id1663617334)

This AI chatbot offers personalized conversations and instant assistance using advanced natural language processing. Powered by ChatGPT, it can help with daily tasks, answer questions, provide writing assistance, and engage in conversations.

**Highlights:** AI-powered conversations, Instant assistance, Natural language processing, Writing help, Text completion, Powered by ChatGPT

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fast.ai Pro | $5.99 | per 7 days |


## Frequently asked questions

### Is Zblocker free?

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

### Is Fast AI free?

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

### Which has better reviews, Zblocker or Fast AI?

Zblocker is rated higher. Zblocker averages 3.7 out of 5 from 7 ratings, while Fast AI averages 3.0 from 3 ratings.

### Do Zblocker or Fast AI have ads?

Fast AI shows ads; Zblocker does not.

### Which is updated more often, Zblocker or Fast AI?

Zblocker ships an update every 5 months, and Fast AI every 2 weeks. Most recently, Zblocker was updated on November 2, 2026 and Fast AI on November 3, 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.*