Comparison

Javascript REPL vs Code Runner

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

Head to head
About

Javascript REPL

Features
Read full description

Hey there, code enthusiasts! Meet Javascript REPL – your new best friend for running JavaScript code on your mobile device. Whether you’re just starting out or you’ve been coding for years, this app is perfect for writing, testing, and running your code anytime, anywhere. Why You’ll Love It: Instant Results: Type your code and see it run immediately. Offline Mode: No internet? No problem! Run your code locally without any hassle. Easy to Use: Clean, simple interface that makes coding on mobile a breeze. Debugging Made Easy: Get clear error messages to help you fix your code quickly. Perfect for students, pros, and anyone who loves to code. Download Javascript REPL now and start coding on the go!

About

Code Runner

This app functions as a mobile compiler and code editor, allowing users to write and execute real code in multiple programming languages. It offers a secure cloud sandbox for instant output and a touch-optimized editor with features like syntax highlighting and autocomplete. Users can save and reuse code snippets and work offline.

Highlights
  • Run code in 8 languages
  • Secure cloud sandbox execution
  • Real-time output and error display
  • Touch-optimized code editor
  • Syntax highlighting and autocomplete
  • Save and reuse code snippets
  • Offline code editing
Features
Read full description

Code Runner turns your phone into a real compiler and code editor. Write code, tap Run, and get real output in seconds — powered by a secure cloud sandbox, not a fake preview. Whether you're a CS student, learning to program, or a developer who wants to test an idea on the go, Code Runner lets you practice and run real code anywhere — no laptop required. RUN REAL CODE ANYWHERE Write and execute real programs in 8 languages: • Python 3 • JavaScript (Node) • C (GCC) • C++ (GCC) • Java • C# (Mono) • Go • Rust SEE OUTPUT INSTANTLY Your code runs in an isolated cloud sandbox and the real output comes back in seconds. Send input through stdin, catch errors, and see exactly what your program prints. A REAL CODE EDITOR A fast, modern editor designed for touch: • Syntax highlighting for every language • Smart autocomplete • Quick-keys bar for the symbols you actually use • Find & replace • One-tap code formatting • Adjustable font size, tab size, line numbers and themes SAVE & REUSE YOUR CODE Save your snippets and keep them ready to run anytime. Your code stays in sync so it's always with you. WORKS OFFLINE Write and edit code anytime — even with no connection. Run it when you're back online. FREE TO START Get 10 code runs every day for free. Upgrade to Pro for unlimited runs and to support ongoing development. Pro is available as a monthly or annual subscription. PERFECT FOR • CS students and self-taught learners • Practicing for interviews and exams • Testing snippets and algorithms on the go • Anyone who codes away from their desk Download Code Runner and carry a compiler in your pocket. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://looplab.app/apps/coderunner/terms-of-service Privacy Policy: https://looplab.app/apps/coderunner/privacy-policy

Screenshots

Javascript REPL3 screens
Code Runner3 screens

Verdict

The call

The clearest difference is in-app purchases: Javascript REPL at none against Code Runner's 2. Javascript REPL also leads on iOS requirement (12.0 vs 16.4). On price, ads 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. Code Runner sells 2 in-app purchases, starting at $3.99 per month. Javascript REPL asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Javascript REPL versus Code Runner: the parameters behind the verdict, then further details
ParameterJavascript REPLCode Runner
PriceFreeFree
Rating—4.7 (3 ratings) — better
Number of ratings—3 — better
Update frequency—Every 4 weeks
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.4
Further details — not scored
Size28 MB54 MB
Age rating4+4+
DeveloperSEUNGWOO JOOmer Faruk BAGCI

In-app purchases

None

Javascript REPL

No in-app purchases

2 purchases

Code Runner

Subscriptions2
  • CodeRunner Pro$3.991 Month
  • CodeRunner Pro (Annual)$24.991 Year

Questions

Is Javascript REPL free?
Javascript REPL is free to download, with no in-app purchases.
Is Code Runner free?
Code Runner is free to download, with in-app purchases available.
Do Javascript REPL or Code Runner have ads?
Both Javascript REPL and Code Runner show ads.

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