Comparison

Frontend Masters vs Learn JSON | JSON Tutor

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

Head to head
About

Frontend Masters

Learn essential JavaScript and front-end development skills with over 100 web development courses. Download videos for offline viewing and access new content as it's released. Progress syncs across devices, ensuring you never lose your place.

Highlights
  • 100+ web development courses
  • Offline video downloads
  • Access to entire course catalog
  • New courses released regularly
  • Cross-device progress sync
Features
Read full description

Master the most important JavaScript and front-end development skills like React, Node.js, Vue, Functional JavaScript, CSS Grid, Flexbox, and more — with 100+ fresh web development courses on Frontend Masters! This iOS App features: - Save videos to your device! Watch on-the-go, on or offline (on the plane, or a train, or in space) - Access to our entire course catalog and new courses as they’re released. - Never lose where you’ve left off — progress syncs online and offline! Subscription Options: • Unlimited - full access for $39.99 per month or $399.99 per year. Cancel anytime. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period at the prices quoted above. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of Service: https://frontendmasters.com/company/terms/ Privacy policy: https://frontendmasters.com/company/privacy/ For issues, the iOS issues repo is now public! https://github.com/FrontendMasters/ios-issues For customer support, email us at support@frontendmasters.com

About

Learn JSON | JSON Tutor

Features
Read full description

# Learn JSON – Master JSON Programming Build your understanding of JSON (JavaScript Object Notation) with Learn JSON, an educational app designed to help you explore JSON fundamentals, understand data structures, and develop your knowledge through organized lessons, examples, and quizzes. Whether you are getting started with JSON or looking to strengthen your existing knowledge, Learn JSON provides a structured learning experience covering essential concepts and practical applications. ## LEARN JSON STEP BY STEP Explore JSON programming through 8 chapters, 66 lessons, and 132 quizzes. Follow organized educational content that introduces important concepts and helps you build a stronger understanding of JSON. Start with the fundamentals and gradually explore JSON syntax, objects, arrays, data types, and related programming concepts. ## EXPLORE ESSENTIAL JSON TOPICS Discover important JSON concepts, including: - Introduction to JSON and its purpose - History and applications of JSON - JSON vs. XML - JSON syntax and structure - JSON objects and arrays - JSON data types - Valid and invalid JSON examples - JSON parsing and serialization - JSON with JavaScript - JSON and Web APIs Each topic helps you become more familiar with JSON terminology, structure, and practical usage. ## STRUCTURED LESSONS AND QUIZZES Follow organized chapters with individual lessons and quiz questions. Explore learning materials, review essential concepts, and use quizzes to reinforce your understanding of JSON. The structured chapter layout makes it easier to navigate topics and continue learning from your current position. ## EXPLORE JSON WITH THE CODE EDITOR Access the built-in Code Editor as part of your learning experience. Use the editor alongside your lessons to explore JSON-related code and become more familiar with programming structures and examples. ## FIND LESSONS WITH SMART SEARCH Quickly explore learning content using the integrated search feature. Search through lessons, topics, categories, and examples to find relevant educational material. Use search filters, browse popular topics, and revisit recent searches to navigate your learning content more conveniently. ## TRACK YOUR LEARNING PROGRESS Stay informed about your learning journey with the dedicated progress section. Review lesson completion, monitor your overall learning progress, and see how far you have advanced through the course. Progress indicators and chapter completion information help you follow your learning activity. ## TAKE NOTES WHILE LEARNING Keep important concepts and useful information organized with the Take Notes feature. Use notes alongside your lessons to support review and reinforce your understanding of JSON topics. ## BUILD A CONSISTENT LEARNING ROUTINE Use the Learning Schedule feature to organize your study routine. Plan your learning activity and make JSON education part of your daily schedule. ## COMMUNITY HELP AND LEARNING TOOLS Access the Community Help section as part of your learning experience. Explore the app's additional learning tools, including search, progress tracking, settings, and organized course navigation. ## WHY LEARN JSON? JSON is a widely used format for representing and exchanging structured data. Understanding JSON can help you become more familiar with data organization, JavaScript applications, and Web APIs. Learn JSON brings important concepts together in a convenient mobile learning environment. Explore lessons, review examples, work with the code editor, answer quizzes, and follow your progress as you develop your JSON knowledge. Start learning JSON today and build your understanding one lesson at a time.

Screenshots

Frontend Masters4 screens
Learn JSON | JSON Tutor4 screens

Verdict

The call

The clearest difference is price: Frontend Masters at Free against Learn JSON | JSON Tutor's $2.99. Frontend Masters also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (11.0 vs 15.6). Learn JSON | JSON Tutor's advantage is in-app purchases (none vs 2). On 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

Frontend Masters is free to download; Learn JSON | JSON Tutor costs $2.99 up front. Frontend Masters sells 2 in-app purchases, starting at $39.99 per month. Learn JSON | JSON Tutor asks for nothing beyond the download.

UpkeepUpdate frequency

Frontend Masters ships an update every 3 weeks, Learn JSON | JSON Tutor every 6 months. The most recent releases landed on November 14, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 6 level
Frontend Masters versus Learn JSON | JSON Tutor: the parameters behind the verdict, then further details
ParameterFrontend MastersLearn JSON | JSON Tutor
PriceFree — better$2.99
Rating4.7 (348 ratings) — better—
Positive reviews79.6% of reviews—
Number of ratings348 — better—
Update frequencyEvery 3 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size40 MB74 MB
Age rating4+9+
DeveloperMJG International, LLCMuhammad Umair

Bugs and requests

Frontend Masters

Reported bugs

11 issues
  • Pause button mutes audio instead of pausing video (iOS 17)
  • App crashes when clicking on courses
  • Video pause not working on iPad
  • PiP mode zombie defect - video continues playing silently
  • Unable to login on app while website login works
Show 6 more
  • Videos don't load without app restart
  • Full-screen video not working on iOS 16+
  • Progress tracking not updating correctly
  • Offline download progress not indicated
  • Phone lock/unlock breaks video playback
  • Video player audio glitches and dropouts

Requested features

9 requests
  • Picture-in-Picture (PiP) mode
  • Search functionality in app
  • Dark mode option
  • Video quality settings
  • Keyboard controls for video playback
Show 4 more
  • Course duration display
  • Caption size adjustment
  • Download progress indication
  • Keyboard support for navigation

Learn JSON | JSON Tutor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Frontend Masters

Subscriptions2
  • Monthly Unlimited$39.991 Month
  • Yearly Unlimited$399.991 Year
None

Learn JSON | JSON Tutor

No in-app purchases

Questions

Is Frontend Masters free?
Frontend Masters is free to download, with in-app purchases available.
Is Learn JSON | JSON Tutor free?
Learn JSON | JSON Tutor costs $2.99, with no in-app purchases.
Do Frontend Masters or Learn JSON | JSON Tutor have ads?
Neither Frontend Masters nor Learn JSON | JSON Tutor shows ads.
Which is updated more often, Frontend Masters or Learn JSON | JSON Tutor?
Frontend Masters ships an update every 3 weeks, and Learn JSON | JSON Tutor every 6 months. Most recently, Frontend Masters was updated on November 14, 2026 and Learn JSON | JSON Tutor on November 9, 2026.

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