# Fast AI vs Chat AI ChatBot

The clearest difference is rating: Chat AI ChatBot at 4.4 against Fast AI's 3.0. Chat AI ChatBot also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.1). Fast AI's advantage is update cadence (every 2 weeks vs every 4 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Fast AI sells 1 in-app purchase, starting at $5.99 per 7 days and Chat AI ChatBot sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Chat AI ChatBot holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

Fast AI ships an update every 2 weeks, Chat AI ChatBot every 4 months. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Fast AI | Chat AI ChatBot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/fast-ai-chatbot-assistant/id1663617334/reviews) | **[4.4 (5 ratings)](https://appshunter.io/ios/app/chat-ai-chatbot-hichatty/id6447237921/reviews)** |
| Number of ratings | 3 | **5** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 150 MB | 8 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Advenworks Ltd.](https://appshunter.io/developer/329900469) | [OpticalVPN](https://appshunter.io/developer/1580064422) |

## What reviewers say

### 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 |


### Chat AI ChatBot

[App page](https://appshunter.io/ios/app/chat-ai-chatbot-hichatty/id6447237921)

Engage in intelligent conversations with an AI-powered chatbot. Get answers, advice, and personalized recommendations on any topic. Discover new interests and enjoy dynamic, insightful chats.

**Highlights:** AI-powered chatbot, Personalized recommendations, Learn new things, Discover new interests, Intelligent conversations, Dynamic chat companion

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Subscription | $5.99 | per 7 days |
| 1 Month Subscription | $14.99 | per month |


## Frequently asked questions

### Is Fast AI free?

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

### Is Chat AI ChatBot free?

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

### Which has better reviews, Fast AI or Chat AI ChatBot?

Chat AI ChatBot is rated higher. Fast AI averages 3.0 out of 5 from 3 ratings, while Chat AI ChatBot averages 4.4 from 5 ratings.

### Do Fast AI or Chat AI ChatBot have ads?

Fast AI shows ads; Chat AI ChatBot does not.

### Which is updated more often, Fast AI or Chat AI ChatBot?

Fast AI ships an update every 2 weeks, and Chat AI ChatBot every 4 months. Most recently, Fast AI was updated on October 18, 2026 and Chat AI ChatBot on October 13, 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.*