# Mobile C { C/C++ Compiler } — Offline C/C++ Compiler > Offline C/C++ compiler and programming learning tool for mobile devices. (iPhone/iPad app by Jeong Seop Lee.) - Source: https://appshunter.io/ios/app/mobile-c-cc-plus-plus-compiler/id467393915 (this page in markdown: same URL + `.md`) - Developer: [Jeong Seop Lee](https://appshunter.io/developer/467393918) - Category: Education, Utilities - Price: $13.99 - Rating: 4.61/5 from 31 App Store ratings · 100 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 356 MB - Languages: English, Japanese, Korean, Portuguese, Russian, Spanish - Released: 2012-01-24 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/mobile-c-cc-plus-plus-compiler/id467393915/reviews.md ## What is Mobile C { C/C++ Compiler }? Learn programming ( coding ) on your mobile devices. * No internet connection is required to run code. == Supported Programming Languages == • C • C++ 11 • Python 3 • Javascript ( Duktape ) • Lua • LLVM Assembly • OpenGL ES 2 GLSL ======= Supported C/C++ APIs ======= • Standard C Library, POSIX • OpenGL ES 2.0, BSD Socket, pthread • Clang, LLVM, libc++, Duktape, Lua, libjson • OpenAL, SQLite3, SQLiteCpp, cURL, libGit2, Python3 • zLib, libPNG, libJPEG, FreeType, MiniZip • APR, APRUtil, iconv, Expat, PCRE2, Apache Serf • Lua, OpenSSL, Apache Subversion • SDL2 ============ Features =========== • C/C++ auto complete. • C/C++ syntax diagnostic. • C/C++ jump to declaration/macro symbol/header. • Built-in Terminal/Shell. ## Key features - Offline C/C++ compilation - Supports C, C++11, Python 3, JavaScript, Lua - C/C++ auto-completion - C/C++ syntax diagnostics - Jump to declaration/symbol/header - Built-in terminal/shell ## What do users think of Mobile C { C/C++ Compiler }? Overall sentiment: mixed **Pros** - ✅ Functional C compiler for iOS devices - 🚀 Offline functionality without internet required - 📚 Includes sample programs and libraries (SDL2, OpenGL, OpenAL) - 💾 Ability to save and organize code files - 🎨 Syntax highlighting and code completion features - 👨‍💻 Supports multiple programming languages (C, Python, Lua) - ⚡ Fast compilation and execution for small programs - 🔧 Developer is responsive to bug fixes and updates - 📱 Works across Apple devices (iPhone, iPad, Mac) - 🎓 Great for learning and practicing C programming **Cons** - ❌ Does not support C++ despite app name suggesting it does - 🐛 Frequent crashes and instability issues - 📉 Poor performance with complex programs - 🔌 Limited standard library support - 🖥️ UI/UX needs improvement and modernization - 📱 Display issues on iPad Pro with Magic Keyboard - ⚠️ Inadequate error reporting and debugging tools - 🔄 Inconsistent behavior across different iOS versions - 🎮 Input/output handling problems with loops and user input - 📚 Missing common C libraries (conio.h, unistd.h, fcntl.h) **Commonly reported bugs** - App crashes when running programs with infinite loops - fscanf and fgets functions not working correctly - Display GUI malfunction on iPad Pro 2020 with Magic Keyboard - Editor text rendering backwards in some versions - Crashes with for loops after accepting user input - Module operator not functioning properly - Pointer operations causing crashes - Unions, register keyword, goto statements causing crashes - Input dialog appearing when not expected - BOM (Byte Order Mark) issue with fgets reading first value - Crashes with invalid C code without proper error messages - Inconsistent compilation results across devices **Most requested features** - Full C++ support with iostream and STL libraries - iCloud synchronization across devices - Custom UI themes and editor fonts - Project file structure and management - Debugger with breakpoints and error reporting - Landscape orientation support on main screen - File I/O improvements (fscanf, fgets functionality) - Line numbering in editor - Syntax highlighting improvements - Support for additional header files and libraries - Separate compilation capability - Special function keys for coding - Document interaction and Dropbox support ## Recent user reviews (10 of 100) All indexed reviews: https://appshunter.io/ios/app/mobile-c-cc-plus-plus-compiler/id467393915/reviews.md ### 5/5 — Best app overall *2024-03-01, version 2.5.2* This app is a work of art. I bought it after years of using the free version. I felt in debt with the developer. Hope you can buy a meal with my purchase, man. I've only used it for c and c++; but I can say it is an impressive app. The developer is a code wizard. If your iOS device is jailbroken and you enable tweaks for this app, I recommend changing the CompilerOptions.UseJITExecution from 0 to 1 inside the app_config.txt file and changing the default compiler to clang for c and c++. It works perfectly for opengl, sdl2 and openal. There is no reason not to do so, unless you prefer to use the default custom compiler, which I have to admit is pretty good. ### 5/5 — Very nice *2021-09-28* I love this app. I have had it for some time and use it a lot. I have done some C programming with it, and am currently using it to improve my knowledge of Python. I don't know enough as a programmer to evaluate everything the app should be expected to do. For example, I don't know C++ and haven't used the app for that. But so far, the app does everything I need it to, and does it well. ### 2/5 — Serious Problem When Used on iPad Pro 2020 *2021-06-01* The Display GUI doesn’t work properly on the iPad Pro 2020 with Magic Keyboard. I have the latest iPadOS installed, 14.6. Please fix this problem. The app is useless with this problem. ### 5/5 — What happened? *2020-10-12, version 2.5.2* My complaint below, I take it all back. Everything works well when I get the typo’s out of my code, both in the free version, and in the purchase version. The module operator works correctly in both versions of the compiler.😊 I got the full $13.99 version when I had iOS 13, and it works well. I have now a second iPad, and my same code, which I wrote explicitly to not be platform/compiler dependent, nevertheless fails to run with the exact same results as my old version, yet with all the same inputs. My code depends on the module operator a lot, and I did read one review somewhere that the module operator does not work. Well, the module operator must work on the compiler version I spent $13.99 on, because my code works well with that version. Is the $13.99 version even available now? Is it the version with the curly brackets rather than the version with the square brackets? I have tried both, and both fail in the same way as to outputs. Frustrated! ### 5/5 — Mobile c *2020-09-13, version 2.5.2* This is an excellent product in every way. The fact that it runs offline is something very special.and the fact that it handles several programming languages makes it one of y favorite apps! I salute the individual or individuals who created it! Thanks from the bottom of my heart! ### 1/5 — Not very useful *2020-07-15* First complaint... C99 ... why? It was deprecated in 2011. Can’t select a different standard? Second, is there no way to create a project? What use is this app beyond simple hello world crap? The completion is nice. Syntax highlighting is a plus but everything pretty much as that. I don’t understand this useless IDEs existence, or any of the others in the “app store” for that matter. My friend bought this and gifted to me. I am glad none of my money was wasted on it. ### 5/5 — C++ 20 is coming soon! *2020-01-15* This is an adorable tool and I completed first round of learning C++ on it. Though there are weak spots such as exception handling and pointer implementation, it's truly great work for the author to create this tool. ### 3/5 — fscanf and fgets are broken in free and $14 version of Mobile C *2019-10-21, version 2.5.2* iPhone 6s, Model NKRL2LL/A, SW ver. 13.1.3 It gets 4 stars when these bugs are fixed. If they implement separate compilation then it gets 5 stars. I tried the free version and it had these two bugs. I thought that (maybe) the developer intentionally limited the capability, so I purchased the ~$14 version. Same bugs! Here’s the code, the input and the result. The workaround was for me to use fgets but put a bogus record at the top, fgets and ignore it. However, fscanf is just plain broken. The same code works just fine on other C compilers, e.g., gcc under Linux, mingw32-gcc under Code::Blocks. // fin1.c: Dr. J. Morris // read values from data file via fscanf #include #include #define N 10 int main(void) { double y[N]; // data loaded in this array FILE *ifp; // input file pointer int n; // number of items fscan'ed int i; // array index // open & error check files if((ifp = fopen("rawdata.dat","r")) == NULL) { perror("Error opening input file: "); exit(EXIT_FAILURE); } // read data into array, echo to console printf("fin1: fscanf is broken\n"); printf("raw data (%d values):\n",N); for(i=0; i #include #include #define N 10 #define M 25 int main(void) { double y[N]; // data loaded in this array char b[M+2]; // we'll fgets into this buffer FILE *ifp; // input file pointer int i; // array index // open & error check files if((ifp = fopen("rawdata.dat","r")) == NULL) { perror("Error opening input file: "); exit(EXIT_FAILURE); } // read data into array, echo to console printf("fin2: first fgets/atof is broken\n"); printf("raw data (%d values):\n",N); for(i=0; i