Comparison

Karel1981 vs C/C++ Programming Compiler

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

Head to head
About

Karel1981

Learn programming with a beginner-friendly language inspired by a robot. This educational tool introduces fundamental coding concepts through interactive exercises, making it ideal for those new to computer science.

Highlights
  • Beginner-friendly programming language
  • Introduces fundamental coding concepts
  • Interactive learning exercises
  • Based on Karel The Robot book
  • Ideal for computer science novices
Features
Read full description

Karel is an educational programming language for beginners, created by Richard E.Pattis in his book Karel The Robot: A Gentle Introduction to the Art of Programming. Pattis used the language in his courses at Stanford University, California. The language is named after Karel Čapek, a Czech writer who introduced the word robot.

About

C/C++ Programming Compiler

Write and execute C/C++ code directly on your mobile device. This application supports the latest compilers and offers advanced editing features for learning and testing code snippets. It allows for easy file management and sharing.

Highlights
  • Compile and run C/C++ programs
  • View program output and errors
  • Select C++ compiler standards (C++98 to C++23)
  • Multithreading support
  • Custom keyboard for special characters
  • Advanced source code editor with syntax highlighting
  • File management and sharing (AirDrop, iCloud)
Features
Read full description

Write C/C++ code directly on your iPhone, iPad and iPod Touch! This app supports the latest C/C++ compilers and is ideal for learning and testing code snippets! C++ is a general-purpose programming language created by Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significantly over time, and modern C++ has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation. Features: - Compile and run your program - View program output or detailed error - Choose between C++ compiler standards (ISO/IEC 14882) namely: C++98, C++03, C++11, C++14, C++17, C++20, C++23 - Multithreading support - Custom keyboard for easy input of frequently used characters - Optimized for connecting with external physical/bluetooth keyboard - Advanced source code editor with syntax highlighting, bracket completion and line numbers - Open, save, import and share C/C++ files. Supports File Sharing with iTunes Connect, AirDrop and iCloud. - Language reference Limitations: - Internet connection is required for compilation - Maximum program running time is 20s - One file can be run at a time - Some file system, network and graphics functions may be limited - This is a batch compiler; interactive programs are not supported. For example, if your program provides an input prompt, enter the input in the Input tab prior to compilation.

Screenshots

Karel19813 screens
C/C++ Programming Compiler4 screens

Verdict

The call

The clearest difference is rating: Karel1981 at 4.5 against C/C++ Programming Compiler's 3.3. Karel1981 also leads on in-app purchases (none vs 1) and ads (none vs shown). C/C++ Programming Compiler's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (116 vs 2). On price 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

Both are free to download. C/C++ Programming Compiler sells 1 one-off in-app purchase. Karel1981 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Karel1981 holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: C/C++ Programming Compiler has 116 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of Karel1981's written reviews are positive against 50% of C/C++ Programming Compiler's.

UpkeepUpdate frequency

Karel1981 ships an update every 5 months, C/C++ Programming Compiler every 3 weeks. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

Scorecard8 real differences · 2 level
Karel1981 versus C/C++ Programming Compiler: the parameters behind the verdict, then further details
ParameterKarel1981C/C++ Programming Compiler
PriceFreeFree
Rating4.5 (2 ratings) — better3.3 (116 ratings)
Positive reviews66.7% of reviews — better50.0% of reviews
Number of ratings2116 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12
Further details — not scored
Size65 MB25 MB
Age rating4+4+
DeveloperIHPCI.org, z.s.Ketan Appa

Customer experience

Karel1981

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

C/C++ Programming Compiler

All ratings116 ratings
Positive52.6%
Neutral10.3%
Negative37.1%
Written reviews168 reviews
Positive50.0%
Neutral13.7%
Negative36.3%

In-app purchases

None

Karel1981

No in-app purchases

1 purchases

C/C++ Programming Compiler

One-time1
  • Upgrade$2.99

Questions

Is Karel1981 free?
Karel1981 is free to download, with no in-app purchases.
Is C/C++ Programming Compiler free?
C/C++ Programming Compiler is free to download, with in-app purchases available.
Which has better reviews, Karel1981 or C/C++ Programming Compiler?
Karel1981 is rated higher. Karel1981 averages 4.5 out of 5 from 2 ratings, while C/C++ Programming Compiler averages 3.3 from 116 ratings.
Do Karel1981 or C/C++ Programming Compiler have ads?
C/C++ Programming Compiler shows ads; Karel1981 does not.
Which is updated more often, Karel1981 or C/C++ Programming Compiler?
Karel1981 ships an update every 5 months, and C/C++ Programming Compiler every 3 weeks. Most recently, Karel1981 was updated on October 2, 2026 and C/C++ Programming Compiler on October 6, 2026.

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