Comparison

C/C++ LLVM Clang vs C Notebook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

C/C++ LLVM Clang

This tool facilitates C/C++ learning and development with offline compilation, code assistance, and cloud storage. It offers features like code templates, autocompletion, and Git integration for efficient programming and collaboration.

Highlights
  • Offline LLVM+Clang compilation and execution
  • Code templates and autocompletion
  • Git fetching from Gitee and GitHub
  • iCloud storage and multi-device sync
  • LAN HTTP/FTP file transfer
  • Built-in browser for learning materials
  • File management and compression
Features
Read full description

This is a learning tool for efficient C/C++ learning, fast programming, 【(LLVM+Clang)offline compilation and local execution】, Git fetching, iCloud storage, and efficient transfer and sharing via LAN HTTP/FTP multi-point connections. (^.^) It aspires to help you who want to learn, develop, or improve! ! ! (^.^) (^.^) Enjoy colorful learning materials at your fingertips and run examples while learning, making it easy to understand and efficient. (^.^) Enjoy code templates, autocomplate, auto-indentation, code coloring, symbol completion, a symbol keyboard, text search, multi-file search, multi-line indentation, and multi-line comments, code formatting, making development more convenient. (^.^) Enjoy easy iCloud storage and multi-device synchronization for efficient collaboration. (^.^) Get source code projects from gitee.com and GitHub with Git. (^.^) Connect to your LAN or Bluetooth and efficiently transfer files via HTTP/FTP multi-point connections. (^.^) Use the built-in browser to easily search for learning materials. Simply select code in the built-in browser to run it. (^.^) Open files in C, CPP, txt, PDF, CHM, MP3, M4V, zip, GIF, PNG, HTML, PY, doc, and other formats from the file system. (^.^) Create folders, files, move files, import files, import photos, import videos, generate audio and video, compress files, and control file sorting from the file system. (^.^) Use gestures like 【left and right swipe】 to switch interfaces quickly and easily. (^.^) Adjust code color, font size, and line spacing for a more comfortable reading experience. (^.^) Customize background images, background colors, text colors, Key colors, shadows, text fonts, text size, background animations, interface transition animations, and the number and order of tabs on the main interface to create your own personalized learning software. (^.^) Generate QR codes for C/C++ scripts and learning materials at your leisure, and scan them to access the scripts and learning materials. (^.^) Share C/C++ scripts and learning materials via email, Weibo, Twitter, and Facebook. Code Templates - The contents of a new file will be copied from the code template. For any questions or suggestions, please contact the developer: QQ: 1301367159 WeChat: 1301367159

About

C Notebook

This application allows users to write, debug, and run C code directly within a note-taking interface. It offers advanced debugging tools like real-time variable monitoring, trend charting, and line-by-line execution. Notes support Markdown formatting, and cloud synchronization enables seamless access across multiple devices.

Highlights
  • 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
Read full description

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/

Screenshots

C/C++ LLVM Clang4 screens
C Notebook4 screens

Verdict

The call

The clearest difference is price: C/C++ LLVM Clang at Free against C Notebook's $0.99. C/C++ LLVM Clang also leads on ratings volume (50 vs 1) and review sentiment (85% vs 75%). C Notebook's advantage is rating (5.0 vs 4.3) and update cadence (fortnightly vs every 2 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

C/C++ LLVM Clang is free to download; C Notebook costs $0.99 up front. C/C++ LLVM Clang sells 7 one-off in-app purchases and C Notebook sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

C Notebook holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: C/C++ LLVM Clang has 50 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 85% of C/C++ LLVM Clang's written reviews are positive against 75% of C Notebook's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

C/C++ LLVM Clang ships an update every 2 months, C Notebook fortnightly. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.

Scorecard5 real differences · 5 level
C/C++ LLVM Clang versus C Notebook: the parameters behind the verdict, then further details
ParameterC/C++ LLVM ClangC Notebook
PriceFree — better$0.99
Rating4.3 (50 ratings)5.0 (1 ratings) — better
Positive reviews84.8% of reviews — better75.0% of reviews
Number of ratings50 — better1
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Mac, Vision Pro — better
Requires iOS14.014.0
Further details — not scored
Size137 MB32 MB
Age rating17+4+
Developer小文 黄铖 邢

Customer experience

C/C++ LLVM Clang

All ratings50 ratings
Positive86.0%
Neutral4.0%
Negative10.0%
Written reviews79 reviews
Positive84.8%
Neutral5.1%
Negative10.1%

C Notebook

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive75.0%
Neutral6.3%
Negative18.8%

In-app purchases

7 purchases

C/C++ LLVM Clang

One-time7
  • To remove ads$0.99
  • Autocomplete$0.99
  • Password Service$0.99
Show 4 more
  • Encryption Compression$0.99
  • Simple Vedio$0.99
  • Text Search$0.99
  • File Transfer$1.99
1 purchases

C Notebook

Subscriptions1
  • C Notebook Premium3 Days trial$0.991 Month

Questions

Is C/C++ LLVM Clang free?
C/C++ LLVM Clang is free to download, with in-app purchases available.
Is C Notebook free?
C Notebook costs $0.99, and also offers in-app purchases.
Which has better reviews, C/C++ LLVM Clang or C Notebook?
C Notebook is rated higher. C/C++ LLVM Clang averages 4.3 out of 5 from 50 ratings, while C Notebook averages 5.0 from 1 ratings.
Do C/C++ LLVM Clang or C Notebook have ads?
Neither C/C++ LLVM Clang nor C Notebook shows ads.
Which is updated more often, C/C++ LLVM Clang or C Notebook?
C/C++ LLVM Clang ships an update every 2 months, and C Notebook fortnightly. Most recently, C/C++ LLVM Clang was updated on September 24, 2026 and C Notebook on September 26, 2026.

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