Mobile C { C/C++ Compiler } User Reviews

What users say

Top reviews

Best app overall

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.
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Very nice

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.
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Serious Problem When Used on iPad Pro 2020

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.

What happened?

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!
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Mobile c

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!

Not very useful

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.
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C++ 20 is coming soon!

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.

fscanf and fgets are broken in free and $14 version of Mobile C

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 <stdio.h>
#include <stdlib.h>
#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<N; i++) {
n = fscanf(ifp,"%lf",&y[i]); // BROKEN!
printf("n = %d, y[%d] = %6.2lf\n", n, i, y[i]);
}
fclose(ifp); // close file
exit(EXIT_SUCCESS); // exit program
}

rawdata.dat
50.1
100.2
0.2
105.5
20.3
20.0
10.0
200.0
205.0
30.0

Console output
fin1: fscanf is broken
raw data (10 values):
n = 0, y[0] = 0.00
n = 0, y[1] = 0.00
n = 0, y[2] = 0.00
n = 0, y[3] = 0.00
n = 0, y[4] = 0.00
n = 0, y[5] = 0.00
n = 0, y[6] = 0.00
n = 0, y[7] = 0.00
n = 0, y[8] = 0.00
n = 0, y[9] = 0.00

// fin2.c: Dr. J. Morris
// read values from data file via fgets
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#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<N; i++) {
fgets(b, M, ifp); // entire line into buffer
b[strlen(b)-1] = '\0'; // nuke newline
y[i] = atof(b); // ascii to double
printf("b = % 5s, y[%d] = %6.2lf\n", b, i, y[i]);
}
fclose(ifp); // close file
exit(EXIT_SUCCESS); // exit program
}

Console output (first value is not correct)
fin2: first fgets/atof is broken
raw data (10 values):
b = 50.1, y[0] = 0.00
b = 100.2, y[1] = 100.20
b = 0.2, y[2] = 0.20
b = 105.5, y[3] = 105.50
b = 20.3, y[4] = 20.30
b = 20.0, y[5] = 20.00
b = 10.0, y[6] = 10.00
b = 200.0, y[7] = 200.00
b = 205.0, y[8] = 205.00
b = 30.0, y[9] = 30.00
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Very good

High quality compiler. I use it for C programming. You can even download examples for SDL2 game library. It is cool.

Awesome mobile IDE

I don’t think I’ve ever left a review...but this developer got my money...👍🏽👍🏽👍🏽 saved a junkie...

Twitchy,,,

Yeah it’s a little twitchy, but works, and is congruent through, MacBook Pro, iPad, and iPhone. As such is fine for coding and testing small snippets in ansi c. Anywhere.

All the other languages are more device specific, with singularly dedicated apps.

As such this is an excellent try at building a vanilla system through all apple vehicles. And deserves much support. I like.

It’s build is ongoing, and by a single developer, impressive effort —so support it.

Currently I have found the other review quite wrong. Except the one about #include<upstream.h> missing. That needs fixing..🔚

Still good under iOS 12, and Mohave. Tried to paste demo program approx 130 lines of proof code, but review wouldn’t allow this...
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Handy C Compiler

This is a handy compiler that I am using to work through some review of basic C but also push further into the language. It doesn’t take long to adjust to its file system. That it doesn’t need an internet connection is a big plus!

Awesome.

Keep it up! Ignore the butthurt old guys and brainwashed eternal students who are still using C++. They're just butthurt about the Mike Acton cppcon talk.

(Speaking as someome that was only ever taught C++ in school, and only discovered the power of C in the last year)

The best way to code

It is the best compiler I ever used on iPhone

Amazing

please add custom themes for ui and editor and font please :)

iCloud sync

Please add icloud syncing.
I use this app on both iPhone and iPad but I can't have all my codes on both of them.
Thank you !✋🏻

Anonymous

Great app!! The developer continuously improves the product, adding features and keeping it remarkably bug free. Offline is another great attribute of this compiler. If it ever becomes online, I know I'll quit using it. When I'm out and about, I am writing real code to prototype for projects instead of texting, though people don't know that :)

The feature list continues to grow. I am absolutely delighted with this app. It's my personal favorite. Good job!
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Amazing! Life changing

A few months ago I started logging how many hours I spend on my phone playing on pointless apps/games. It was far too high. I'm a programmer and have always wanted to learn C so decided to delete all of the games on my phone and start reading C tutorials. After about a week I found this app.

Since then I have spent many hours a week learning C, writing programs and testing them out on this app. I'm not a master yet but I have learnt so much thanks to this app.

Thank you to the developer of this app. It really has changed my life. The update from yesterday was awesome, with code complete and a much better keyboard layout. I look forward to future updates!

I highly recommend this app to anyone who is tired of wasting their time with pointless games and wants to actually learn a skill and test their brain.
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Hands down, the best

This is by far the best C compiler available on iOS. It comes with a very good selection of libraries and sample programs; the user interface is well-designed; and, above all, it's powerful enough to run 'real' C code unmodified. To give you some idea, it now includes—and runs successfully—the complete Lua 5.3.2 and Python 3.5.1 interpreters. It also partly supports C++, but not completely (no iostream, for example). The developer provides excellent support.
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5 stars!

This is a very usable C compiler and editor program. It makes it possible to write programs in C on iPad. Interface is clear, you can organize your source codes in a file structure. Big plus for the programs's author for updating this software.