Karel1981 vs C Compiler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Beginner-friendly programming language
- Introduces fundamental coding concepts
- Interactive learning exercises
- Based on Karel The Robot book
- Ideal for computer science novices
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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.
C Compiler
This application provides an integrated development environment for C programming, complete with an offline tutorial and sample programs. It features syntax recognition and auto-formatting to aid users in writing and running complex C code.
- Run complex C programs
- Offline C tutorial
- Sample C programs
- Syntax recognition IDE
- Auto text formatting IDE
- File opening and saving
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C COMPILER & C++ IDE — LEARN, PRACTICE, RUN A complete C/C++ learning and coding companion: guided courses, hundreds of practice programs, an on-device AI tutor, and a real IDE that compiles and runs your code right on your phone — no internet required to code. Whether you're just starting out or brushing up before an interview, C Compiler gives you a structured path through the language plus a genuine playground to write and test real programs. Before leaving a negative rating, give us a chance to help — send complaints, suggestions, or issues to support@ilabbs.com. We reply. Main Features • Real C and C++ interpreters — write and run code on-device • Guided courses from fundamentals to advanced topics • Hundreds of practice programs, organized by topic and difficulty • On-device AI tutor — ask questions, get help debugging, all private • Interview prep — real questions across core CS topics • Syntax highlighting and smart code editing • Open and save your own files • Daily streaks and progress tracking Courses Include • C Fundamentals & Basics • Data Types & Operators • Control Flow & Loops • Functions • Arrays, Pointers & Strings • Structures & File Handling • C++ OOP, Templates & STL Terms of Use (EULA): https://ilabbs.com/PrivacyPolicy/ccompilerLegal/iOS/terms_of_use.html Privacy Policy: https://ilabbs.com/PrivacyPolicy/ccompilerLegal/iOS/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Karel1981 at none against C Compiler's 4. Karel1981 also leads on ads (none vs shown) and rating (4.5 vs 4.3). C Compiler's advantage is ratings volume (112 vs 2). On price, update cadence 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
Both are free to download. C Compiler sells 4 in-app purchases, starting at $2.99 per month. Karel1981 asks for nothing beyond the download.
Karel1981 holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: C Compiler has 112 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 59% of C Compiler's.
Karel1981 ships an update every 5 months, C Compiler every 4 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.
| Parameter | Karel1981 | C Compiler |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 4.3 (112 ratings) |
| Positive reviews | 66.7% of reviews — better | 58.6% of reviews |
| Number of ratings | 2 | 112 — better |
| Update frequency | Every 5 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 65 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | IHPCI.org, z.s. | sutheesh sukumaran |
Customer experience
Karel1981
C Compiler
In-app purchases
Karel1981
No in-app purchases
C Compiler
- C Compiler Premium — Monthly$2.991 Month
- C Compilar Premium — Yearly$24.991 Year
- Remove Ads$49.99
- LifeTime$49.99
Questions
Is Karel1981 free?
Is C Compiler free?
Which has better reviews, Karel1981 or C Compiler?
Do Karel1981 or C Compiler have ads?
Which is updated more often, Karel1981 or C Compiler?
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