# C Notebook — Code, Debug and Markdown Note

> Integrated C code editor, debugger, and Markdown note-taker with cloud sync. (iPhone/iPad app by 铖 邢.)

- Source: https://appshunter.io/ios/app/c-notebook/id1621919001 (this page in markdown: same URL + `.md`)
- Developer: [铖 邢](https://appshunter.io/developer/1497880786)
- Category: Developer Tools, Utilities
- Price: $0.99 with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 16 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 32 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2023-03-12
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/c-notebook/id1621919001/reviews.md

## What is C Notebook?

This is a notebook that integrates code and note functions.
At present, the notebook supports C language writing and local debugging and running, and a series of excellent debugging methods are specially designed for the notebook: for example, during the running process, you can see the value of the variable at any time, and you can also change it at runtime The value of the variable, and even you can display the change trend of the variable value as a graph, which allows you to use C language to quickly simulate the classic probability theory experiment, and witness the convergence process of the variable value with your own eyes, which is much clearer than using text to output the variable value .
If you encounter a bug, you don't need to set any breakpoints, you can directly execute the code line by line at a slow speed, and combine real-time variable values and variable trend charts to analyze what is different from what you imagined.
Of course, the code editor won't let you down either. Supports syntax highlighting, syntax hints and very smart auto-completion and code formatting. Although the code is embedded in the note, you can still complete a piece of code by abbreviating very easily.
The notes support the Markdown format. If you are a Markdown expert, you should be able to edit beautiful layouts very easily, and if you are a novice, you can also write notes elegantly. iPad, iPhone and Mac can be seamlessly connected through the cloud synchronization function, and you can view, edit and run your code anywhere.
Of course, if you encounter any problems or any suggestions, please feel free to contact us. Our email is feedback@forgetive.org, welcome and adopt your opinions at any time!

------ In-App Subscription Information -------
C Notebook Premium (Auto-Renew Subscription)
When purchasing a subscription, if you log in to the online account in the app, the subscription will be bound to the online account, and you can use the online function benefits of the subscription. If you did not log in to the in-app account when purchasing, you can only use the local functions of the subscription benefits. You can register or log in to the in-app account at any time during the subscription validity period, and the App will ask you whether to bind the subscription to the account.
Payment will be debited from your iTunes account immediately after confirmation of purchase. Subscriptions may be managed and auto-renewal may be turned off by going to your Account Settings after purchase. If you start a free trial, you need to cancel the subscription at least 24 hours before the end of the trial period, otherwise the system will automatically charge you after the trial period ends.
Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period. After canceling your subscription, your subscription remains active until the end of the current subscription period. No refunds will be given for current subscriptions when auto-renew is disabled. If a free trial is offered, any unused portion of the free trial period will be forfeited when you purchase a subscription.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- C language coding and local debugging
- Real-time variable value monitoring and modification
- Variable trend charts
- Line-by-line code execution
- Syntax highlighting and auto-completion
- Markdown note support
- Cloud synchronization across devices

## Pricing and in-app purchases

Base price: $0.99.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| C Notebook Premium | $0.99 | per month |


## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/c-notebook/id1621919001/reviews.md

### 5/5 — 希望支持C++

*2025-11-09*

希望支持C++

### 3/5 — Issue related add content!

*2025-05-20*

Please fix the issue :after clicking 2-4 times ,,add content ,,it works,,,so please fix it!

### 5/5 — 不错不错

*2024-12-25*

非常不错，代码自动补全功能不错，再也不用DEV-C  了。
不错不错。

### 5/5 — 相当好用

*2024-12-03*

不是托，我这俩星期内在App Store下载了十几个c语言软件，不是广告满屏飞就是恶意收费亦或是开发组摆烂不听劝，虽然这个软件的高级版收费，但是物有所值，一月三块钱也不贵，少喝一杯可乐就有了，C Notebook还内置ai和教程，在同类型软件内相当拔尖了。

### 2/5 — 文件无法拖动到文件夹有点抽象啊

*2024-11-14*

文件无法拖动到文件夹，等于是打了个无法撤回的标签，还没法倒入文件，实属不好用啊

### 5/5 — 爱死了

*2024-10-10*

最好用的，没有之一

### 5/5 — 好用的软件

*2024-09-29*

相较于其他的软件非常好用，能查错，基础功能免费

### 2/5 — 不太喜欢

*2024-05-29*

导出都要收费。。。。。。

### 5/5 — 好用的

*2024-05-09*

感觉比code app好用

**Developer response:** 感谢你的评论！

### 5/5 — Impressive.

*2024-04-03*

Huge caveat: I'm not a C programmer.  I mostly use Rust & Python.  So I only sampled this app.  But I was very impressed.  Python has a large computational notebook culture.  Largely centered around Jupyter notebooks and inspired by Mathematica notebooks.   Rust has a compiled, explicit writing style and has extensions to allow interpreted execution so it can be used in the Jupyter ecosystem.  But I much prefer the style that the authors have gone for here.  Literate coding in a system centered around the language.

It's also been a joy to use in AVP -- whereas most programmers (self included) are still working on our laptop/desktop and just projecting screens into AVP space, but longing for a more native environment.

TLDR: this is a very promising and seemingly quite polished experience for both literate programming and code exploration.  I cannot give an in depth review as I'm not a C programmer, but this should be a reference for anyone building out programming abilities in the AVP.  (And strong integration of notes, in some fashion as well as code chunk exploration should both be norms, IMHO.)

## Frequently asked questions about C Notebook

### What is C Notebook?

C Notebook is a mobile application designed for writing, debugging, and running C code within a Markdown note-taking environment. It offers advanced debugging features and cross-device synchronization.

### Does C Notebook support offline use?

Yes, C Notebook supports local debugging and running of C code, indicating that core coding and debugging functionalities are available offline. Cloud synchronization is used for cross-device access.

### How does the debugging in C Notebook work?

C Notebook provides advanced debugging methods, allowing you to execute code line by line without breakpoints, monitor variable values in real-time, and visualize variable trends with graphs.

### What devices is C Notebook available on?

C Notebook is available on iPhone, iPad, iPod, Mac, and Apple Vision Pro devices, with seamless cloud synchronization across them.

### How often is C Notebook updated?

The latest version, 3.7.0, was released on November 2, 2024, suggesting a relatively active update schedule for the application.

### What are the subscription options for C Notebook?

C Notebook offers a Premium subscription at $0.99 per month with a 3-day free trial. Subscriptions can be managed and auto-renewal turned off in account settings.

### Is C Notebook suitable for beginners?

Yes, the application supports syntax highlighting, smart auto-completion, and elegant note-writing for novices, making it accessible for those new to C programming or Markdown.

### What is the user rating for C Notebook?

C Notebook has a high user rating of 5.0 stars based on one review, indicating a very positive initial reception from its users.

## Version history (last 5 releases)

### 3.7.0 — 2024-11-02

Fix several bugs and continuously improve the experience.

### 3.6.5 — 2024-07-28

Fix several bugs and continuously improve the experience.

### 3.6.0 — 2024-07-20

1. Support collapse cell.
2. Add AI tab.
3. Fix bugs.

### 3.5.5 — 2024-07-02

1. Fix bugs.
2. Enhance the experience.

### 3.5.0 — 2024-07-01

1. Fix bugs.
2. Enhance the experience.

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## More apps by 铖 邢

- [Natural Island](https://appshunter.io/ios/app/natural-island/id1497880787)
- [C Code Develop](https://appshunter.io/ios/app/c-code-develop/id1503486606)
- [PhySim Lab](https://appshunter.io/ios/app/physim-lab/id1521781822)
- [Code Develop IDE](https://appshunter.io/ios/app/code-develop-ide/id1564857036)
- [Python Code Develop](https://appshunter.io/ios/app/python-code-develop/id6742342498)

All apps by 铖 邢: https://appshunter.io/developer/1497880786

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*