# AI Agent Builder vs chat4000

The clearest difference is price: chat4000 at Free against AI Agent Builder's $2.99. AI Agent Builder's advantage is chart position (#181 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

chat4000 is free to download; AI Agent Builder costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AI Agent Builder ships an update every 10 days, chat4000 fortnightly. The most recent releases landed on September 15, 2026 and July 25, 2026 respectively.

## The numbers

| Metric | AI Agent Builder | chat4000 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Best chart rank | **#181** | — |
| Size | 6 MB | 59 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Yuhsiu Lai](https://appshunter.io/developer/433114647) | [NeonNode](https://appshunter.io/developer/1895319084) |

## What reviewers say

### AI Agent Builder

[App page](https://appshunter.io/ios/app/ai-agent-builder-create-agent/id6762403953)

**Currently charting:** #181 Top Paid · Productivity (US App Store)

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

**In-app purchases:** none


### chat4000

[App page](https://appshunter.io/ios/app/chat4000/id6763445283)

**In-app purchases:** none


## Frequently asked questions

### Is AI Agent Builder free?

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

### Is chat4000 free?

chat4000 is free to download, with no in-app purchases.

### Do AI Agent Builder or chat4000 have ads?

Neither AI Agent Builder nor chat4000 shows ads.

### Which is updated more often, AI Agent Builder or chat4000?

AI Agent Builder ships an update every 10 days, and chat4000 fortnightly. Most recently, AI Agent Builder was updated on September 15, 2026 and chat4000 on July 25, 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.*