Comparison

hexaConverter vs JavaScript Champ

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

Head to head
About

hexaConverter

This app offers a versatile conversion tool for number systems like decimal, hexadecimal, and binary, alongside ASCII conversions. It also includes a random number generator and a comprehensive suite of metric conversions for everyday measurements. Users can save notes and favorite ASCII characters.

Highlights
  • Decimal, Hexadecimal, Binary conversions
  • ASCII conversions
  • Random number generator
  • Metric unit conversions
  • Note-taking and favorites
Features
Read full description

Supported Conversions:
 - Decimal ↔ Hexadecimal
 - Decimal ↔ Binary
 - Decimal ↔ ASCII
 - Hexadecimal ↔ Binary

 Random Numbers Generator
 Generate random numbers within your chosen range.

 Metric Conversions
 Quickly convert:
cm ↔ inch, cm ↔ feet, mile ↔ Km, Kg ↔ pound, ml ↔ Oz, ℃ ↔ ℉, Liter ↔ Gallon, psi ↔ Pa, psi ↔ bar, bar ↔ Pa, Joule ↔ cal, hp → Watt

 Notes
 Add memos or save your favorite ASCII characters.

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.

Screenshots

hexaConverter4 screens
JavaScript Champ4 screens

Verdict

The call

The clearest difference is price: JavaScript Champ at Free against hexaConverter's $0.99. JavaScript Champ also leads on update cadence (fortnightly vs monthly). hexaConverter's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, ratings volume, device support and iOS requirement 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

JavaScript Champ is free to download; hexaConverter costs $0.99 up front. JavaScript Champ sells 1 one-off in-app purchase. hexaConverter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for hexaConverter against 5.0 for JavaScript Champ. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

hexaConverter ships an update monthly, JavaScript Champ fortnightly. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

Scorecard5 real differences · 5 level
hexaConverter versus JavaScript Champ: the parameters behind the verdict, then further details
ParameterhexaConverterJavaScript Champ
Price$0.99Free — better
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyMonthlyFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size1 MB16 MB
Age rating4+4+
DeveloperMARLENE IGARASHIYoan Enchev

Customer experience

hexaConverter

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

JavaScript Champ

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

In-app purchases

None

hexaConverter

No in-app purchases

1 purchases

JavaScript Champ

One-time1
  • JavaScript Champ Premium$12.99

Questions

Is hexaConverter free?
hexaConverter costs $0.99, with no in-app purchases.
Is JavaScript Champ free?
JavaScript Champ is free to download, with in-app purchases available.
Which has better reviews, hexaConverter or JavaScript Champ?
hexaConverter and JavaScript Champ are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do hexaConverter or JavaScript Champ have ads?
JavaScript Champ shows ads; hexaConverter does not.
Which is updated more often, hexaConverter or JavaScript Champ?
hexaConverter ships an update monthly, and JavaScript Champ fortnightly. Most recently, hexaConverter was updated on October 2, 2026 and JavaScript Champ on September 28, 2026.

Other comparisons