Comparison

JavaScript Champ vs Learn Coding

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

Head to head
About

JavaScript Champ

Learn JavaScript programming through interactive exercises and tutorials covering basics to advanced topics. Prepare for interviews and build practical programs. Gamified elements help you climb ranks and become a job-ready developer.

Highlights
  • Interactive JavaScript exercises
  • Beginner to advanced tutorials
  • Interview preparation questions
  • Offline access
  • Gamified progress tracking
  • Practical programming challenges
Features
Read full description

Learn JavaScript programming via interactive exercises and simple tutorials. The app is suitable for anyone with it's interactive JavaScript programming exercises. Main JavaScript tutorials you'll find: * JavaScript basics - if statements and loops * Advanced JavaScript topics like arrays, matrix, functions and more. * Catchy JavaScript questions to prepare you for interviews. You can make the first steps of starting your career as a JavaScript developer. The JavaScript tutorials and exercises have pretty wide range. This can prepare you for JavaScript interviews. You'll learn anything - from the basics to OOP - Object oriented programming in JavaScript. Make the first steps of becoming a JavaScript developer. All you need is basic JavaScript programming knowledge and your phone/tablet. The app also provides offline access to all of it's JavaScript tutorials. You can learn JavaScript on the go from anywhere. Boost your JavaScript learning experience by climbing ranks. This way you can climb up to the top and become ready for JavaScript programmer job. It doesn't matter if you are a beginner starting his/her JavaScript coding journey or you're advancer learning OOP - Object oriented programming in JavaScript. The app will help you learn all necessary JavaScript programming concepts. It will also let you check if you've learned well JavaScript topic through exercises with feedback. You can build JavaScript problems through challenges solving practical problems. JavaScript is widely used language which can offer you an awesome well paid career as a JavaScript developer. That's why you should add JavaScript programming to your skills. Learn JavaScript PRO to improve your learning experience. * Ad-free experience. Remove any distractions from your JavaScript learning experience. * Unlock puzzles hints * Unlock all challenges and build practical JavaScript programs step by step. * Explanations to all questions. Understand JavaScript concepts via simple and clear explanation. I believe that JavaScript programming needs to be fun. Simple JavaScript tutorials and practical exercises with Gamification UI is the best way to lead you to becoming a JavaScript programmer. Ready to become a JavaScript champ? Download it now! Your feedback and ideas are important. They make me improve the application and boost your JavaScript programming experience. You can reach me at javascript.champ.pro@gmail.com With much Love from the JavaScript Champ dev.

About

Learn Coding

This app offers Python coding practice focused on technical interview preparation. It helps users develop debugging instincts and problem-solving skills with daily challenges and detailed explanations.

Highlights
  • Daily coding practice challenges
  • Detailed lesson explanations
  • Progress tracking
  • Focus on interview concepts
  • Privacy-first design
  • Learn Python on the go
Features
Read full description

Land your next tech job. Off By One turns learning to code and coding interview prep into a five-minute daily habit. Real interview problems, taught the way you actually learn: step by step, with animated visualizations, guided code building, and complexity quizzes. You watch the algorithm move, then you build it yourself, then you prove you understand why it works. No copy-pasting into a judge, no walls of text. WHAT'S INSIDE • 64 guided lessons across 14 topics: arrays and hashing, two pointers, sliding window, stacks, binary search, linked lists, trees, tries, heaps, backtracking, graphs, dynamic programming, greedy algorithms, and intervals • Every lesson in Python, Java, and JavaScript, each written for that language by hand, never transliterated: the JavaScript version asks JavaScript questions, the Java version asks Java questions • Animated, step-by-step visualizations that show how each algorithm actually works: pointers travel, windows slide, trees traverse • Big-O time and space quizzes on every problem, so you can explain the "why" in the room, not just recite the code • 20 system design stories covering caching, load balancing, sharding, CDNs, rate limiting, database indexing, message queues, CAP, WebSockets, and more • A beginner intro for every topic, so you can start from zero and still end up interview-ready • Streaks, weekly progress charts, and an activity grid that keep you honest, five minutes at a time HOW A LESSON WORKS 1. Understand the problem and the approach in plain language 2. Watch the algorithm run, one step at a time 3. Build the solution yourself with guided code steps 4. Answer for its time complexity 5. Answer for its space complexity Finish a lesson and the next one is waiting: the curriculum is ordered so every topic builds on the one before it. WHO IT'S FOR • Complete beginners who want to learn to code with a clear goal • CS students preparing for internship and new-grad interviews • Self-taught developers filling the data structures and algorithms gap • Working engineers brushing up before the next interview loop START FREE Every lesson and story opens free: read the problem, watch the first steps, get a feel for it. Premium unlocks full visualizations, code building, complexity training, and system design. Off By One Premium is an auto-renewing subscription. Plans: annual with a 3-day free trial, monthly with a 3-day free trial, or weekly. Prices are shown in the app in your local currency. Payment is charged to your Apple ID account at purchase confirmation, or when the free trial ends. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID settings. Unused trial time is forfeited on purchase. Privacy Policy: https://www.ijustwantagoodjob.com/off-by-one/privacy-policy Terms of Use: https://www.ijustwantagoodjob.com/off-by-one/terms-of-service

Screenshots

JavaScript Champ4 screens
Learn Coding4 screens

Verdict

The call

The clearest difference is rating: JavaScript Champ at 5.0 against Learn Coding's 4.3. Learn Coding's advantage is ads (none vs shown). On price, ratings volume, update cadence and in-app purchases 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. JavaScript Champ sells 1 one-off in-app purchase and Learn Coding sells 6 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

JavaScript Champ holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
JavaScript Champ versus Learn Coding: the parameters behind the verdict, then further details
ParameterJavaScript ChampLearn Coding
PriceFreeFree
Rating5.0 (2 ratings) — better4.3 (4 ratings)
Positive reviews—100.0% of reviews
Number of ratings24 — better
Update frequencyFortnightlyFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size16 MB88 MB
Age rating4+4+
DeveloperYoan EnchevI JUST WANT LLC

Customer experience

JavaScript Champ

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Learn Coding

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

JavaScript Champ

One-time1
  • JavaScript Champ Premium$12.99
6 purchases

Learn Coding

Subscriptions6
  • Premium Weekly3 Days trial$1.997 Days
  • Premium Weekly3 Days trial$4.997 Days
  • Premium Monthly (1 Month)$4.991 Month
Show 3 more
  • Premium Monthly Subscription$9.991 Month
  • Premium Annually (1 Year)3 Days trial$14.991 Year
  • Premium Annually3 Days trial$59.991 Year

Questions

Is JavaScript Champ free?
JavaScript Champ is free to download, with in-app purchases available.
Is Learn Coding free?
Learn Coding is free to download, with in-app purchases available.
Which has better reviews, JavaScript Champ or Learn Coding?
JavaScript Champ is rated higher. JavaScript Champ averages 5.0 out of 5 from 2 ratings, while Learn Coding averages 4.3 from 4 ratings.
Do JavaScript Champ or Learn Coding have ads?
JavaScript Champ shows ads; Learn Coding does not.
Which is updated more often, JavaScript Champ or Learn Coding?
JavaScript Champ ships an update fortnightly, and Learn Coding fortnightly. Most recently, JavaScript Champ was updated on September 28, 2026 and Learn Coding on October 2, 2026.

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