Run-C
Write and run C code offline
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Learn C on iPhone and iPad. Write, run, and experiment with real C programs, fully offline. 15 guided examples, syntax highlighting, and an instant output console.
Run-C is a hands-on way to learn and practice the C programming language right on your iPhone or iPad, completely offline. Write real C code, tap Run, and see your output instantly. No internet, no accounts, and no complicated setup.
Whether you are taking your first steps in programming or brushing up on the fundamentals, Run-C gives you a focused environment to experiment, make mistakes, and learn by doing.
GUIDED LEARNING PATH
Run-C includes 15 ready-to-run example programs organized into a Beginner Path that builds your skills step by step:
- Hello World: your first program and printf
- For Loop Sum: loops and integer math
- If/Else: branching with conditions
- Countdown: while loops and decrement
- Multiplication Table: nested output in a loop
- Average, FizzBuzz, Max of Three, Factorial, Power
- Prime Check, GCD, Fibonacci, Hex and Char, Collatz Steps
Each example comes with a short description so you understand what it teaches before you run it.
A REAL CODE EDITOR
- Syntax highlighting for keywords, comments, and strings
- Line numbers with a clean gutter
- Smart auto-indentation on new lines
- Automatic bracket, parenthesis, and quote pairing
- A dedicated C-symbol keyboard bar for fast access to common symbols
- Live line and character counts
INSTANT OFFLINE OUTPUT
- Runs your C program locally on device, no network required
- Clear Output console with selectable text
- Separate Warnings tab that surfaces issues without cluttering your results
- Error lines highlighted directly in the editor so you can find and fix mistakes fast
- Run timing so you can see how quickly your program executes
PRIVATE BY DESIGN
Your code never leaves your device. Compilation and execution happen entirely on-device, so you can learn and experiment anywhere, even without a connection.
WHO IT IS FOR
- Students learning C in school or on their own
- Developers who want a quick scratchpad for small C snippets
- Anyone curious about how programming works, in a friendly, no-pressure environment
Run-C focuses on core C language constructs for learning: control flow, numbers, strings, and basic I/O with printf. Some advanced features and system-level APIs are intentionally not supported on iOS.
Questions or feedback? Email kshravi86@gmail.com.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Aakash Ravi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Aakash Ravi
- Size
- 1 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Aakash Ravi
