# JS.Notebook vs ChatAI

The clearest difference is in-app purchases: JS.Notebook at none against ChatAI's 2. ChatAI's advantage is update cadence (every 4 days vs every 50 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ChatAI sells 2 in-app purchases, starting at $2.99 per month. JS.Notebook asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for JS.Notebook against 5.0 for ChatAI. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

JS.Notebook ships an update every 50 months, ChatAI every 4 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | JS.Notebook | ChatAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/jsnotebook/id1470144639/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/chatai-your-ai-assistant/id6448965735/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 19 MB | 10 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Zijie Deng](https://appshunter.io/developer/1070117038) | [松明 张](https://appshunter.io/developer/1064830289) |

## What reviewers say

### JS.Notebook

[App page](https://appshunter.io/ios/app/jsnotebook/id1470144639)

Build, test, and run your JavaScript code directly on your iOS device. This utility allows you to execute scripts in widgets and even use your device as a host for computer browser code execution.

**Highlights:** Build JavaScript code, Test code at runtime, Run code in widgets, Use device as code host, Code execution in computer browser

**Features:** macOS Compatibility

**In-app purchases:** none


### ChatAI

[App page](https://appshunter.io/ios/app/chatai-your-ai-assistant/id6448965735)

This AI-powered assistant answers questions and provides information using natural language. It offers a premium subscription for enhanced features and is available on multiple Apple devices.

**Highlights:** Natural language interaction, Intelligent question answering, Information provision, Premium subscription option, Cross-device compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is JS.Notebook free?

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

### Is ChatAI free?

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

### Which has better reviews, JS.Notebook or ChatAI?

JS.Notebook and ChatAI are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do JS.Notebook or ChatAI have ads?

Neither JS.Notebook nor ChatAI shows ads.

### Which is updated more often, JS.Notebook or ChatAI?

JS.Notebook ships an update every 50 months, and ChatAI every 4 days. Most recently, JS.Notebook was updated on November 3, 2026 and ChatAI 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.*