# Binary Brain vs JS.Notebook

The clearest difference is price: JS.Notebook at Free against Binary Brain's $0.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

JS.Notebook is free to download; Binary Brain costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Binary Brain ships an update every 38 months, JS.Notebook every 50 months. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Binary Brain | JS.Notebook |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jsnotebook/id1470144639/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 38 months** | Every 50 months |
| Monetization | — | Free |
| Size | 6 MB | 19 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [George Chalkiadoudis](https://appshunter.io/developer/1040522966) | [Zijie Deng](https://appshunter.io/developer/1070117038) |

## What reviewers say

### Binary Brain

[App page](https://appshunter.io/ios/app/binary-brain/id1040522967)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Binary Brain free?

Binary Brain costs $0.99, with no in-app purchases.

### Is JS.Notebook free?

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

### Do Binary Brain or JS.Notebook have ads?

Neither Binary Brain nor JS.Notebook shows ads.

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

Binary Brain ships an update every 38 months, and JS.Notebook every 50 months. Most recently, Binary Brain was updated on September 21, 2026 and JS.Notebook on September 17, 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.*