Comparison

devdex vs Learn JavaScript

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

Head to head
About

devdex

This app helps developers practice coding syntax for JavaScript, TypeScript, and Swift. It offers over 200 questions, tracks your progress with a weekly streak, and provides statistics on accuracy and quantity. Links to official language documentation are also included.

Highlights
  • JavaScript, TypeScript, Swift support
  • Over 200 practice questions
  • Weekly streak tracker
  • Accuracy and quantity statistics
  • Links to language documentation
Features
Read full description

v1.0 Features: - JavaScript, TypeScript, Swift - Over 200 questions - Weekly streak tracker - Accuracy and quantity stats - Links to language docs LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Learn JavaScript

Master JavaScript with bite-sized lessons, a real code editor, and an AI mentor. Learn fundamentals and advanced topics through hands-on practice and challenges. Earn a certificate upon completion.

Highlights
  • Bite-sized JavaScript lessons
  • Real code editor on mobile
  • AI mentor for instant answers
  • Hands-on practice and quizzes
  • Weekly coding challenges
  • Certificate of completion
Features
Read full description

Learn JavaScript from scratch — no experience needed. Bite-sized JavaScript lessons, a real code editor on your phone, and an AI mentor that answers your questions in seconds. Built for complete beginners, students and career switchers. WHY LEARN JavaScript? • JavaScript is an in-demand skill — a strong addition to any resume • Learn by doing: every lesson mixes short theory with hands-on practice • Build real foundations you can use in projects, work and interviews • Start from zero — every concept is explained in plain language WHAT YOU'LL LEARN • JavaScript fundamentals — the core concepts, step by step • The essential building blocks used in real-world JavaScript work • Practical techniques you can apply right away • Common mistakes — and how to avoid them • Hands-on exercises after every topic • Advanced topics to keep growing beyond the basics EVERYTHING YOU NEED TO LEARN JavaScript • AI Mentor — stuck on a concept or an error? Ask anything and get a clear answer in seconds • 100+ bite-sized lessons (5–10 minutes each) — built for real life, not lecture halls • Real code editor — write and run JavaScript code right on your phone • Quizzes and coding challenges after every topic to lock in what you learn • Weekly Code Challenge — compete with learners around the world • Certificate of completion — pass the final exam and prove your skills • Streaks, progress tracking and smart reminders to keep you consistent • Learn on the go — lessons load fast and keep working on flaky connections • App available in 22 languages WHO IT'S FOR • Complete beginners taking their first steps • Students who want extra practice alongside classes • Career switchers building job-ready skills • Anyone curious about JavaScript Part of CoddyKit — a family of 40+ coding apps trusted by 100,000+ learners worldwide. Free to start: your first course is free, with a daily AI Mentor allowance. Pro unlocks every course, removes ads and gives you unlimited AI Mentor. Download Learn JavaScript: Code & Build and write your first line of JavaScript today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.coddykit.com/terms/privacy-policy

Screenshots

devdex3 screens
Learn JavaScript4 screens

Verdict

The call

The clearest difference is ads: devdex at none against Learn JavaScript's shown. On price, rating, ratings volume and update cadence 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. devdex sells 2 in-app purchases, starting at $4.99 per month and Learn JavaScript sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

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

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

Scorecard1 real difference · 8 level
devdex versus Learn JavaScript: the parameters behind the verdict, then further details
ParameterdevdexLearn JavaScript
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Number of ratings12 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size41 MB67 MB
Age rating4+4+
DeveloperTrevor PenningtonMEHMET CANKER (TR)

Customer experience

devdex

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Learn JavaScript

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

devdex

Subscriptions2
  • Devdex Monthly$4.991 Month
  • Devdex - Yearly$34.991 Year
4 purchases

Learn JavaScript

Subscriptions3
  • Weekly Subscription$3.997 Days
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$8.901 Year
One-time1
  • Lifetime Subscription$19.90

Questions

Is devdex free?
devdex is free to download, with in-app purchases available.
Is Learn JavaScript free?
Learn JavaScript is free to download, with in-app purchases available.
Which has better reviews, devdex or Learn JavaScript?
devdex and Learn JavaScript are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do devdex or Learn JavaScript have ads?
Learn JavaScript shows ads; devdex does not.
Which is updated more often, devdex or Learn JavaScript?
devdex ships an update every 3 weeks, and Learn JavaScript every 3 weeks. Most recently, devdex was updated on October 24, 2026 and Learn JavaScript on October 21, 2026.

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