Comparison

Frontend Masters vs Knojo

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

Knojo

Features
Read full description

Everything you learn starts fading the moment you close the book. Knojo brings each idea back the moment before it slips — so what you study actually sticks. Knojo is a spaced-repetition flashcard app built for calm, consistent learning. Turn your notes, articles, and study material into smart flashcards, tie them to real goals like "React interview prep," "Dutch vocabulary," or "Biology exam," and let Knojo handle the rest. Every day it surfaces only the cards that are due — usually a focused five-minute review — and schedules the next one based on how well you remembered. What you can do with Knojo: • Spaced repetition that works — rate each card Forgot, Hard, Good, or Easy and Knojo schedules the perfect next review. • AI-generated flashcards — paste your notes or an article and get clean, study-ready cards in seconds. • Learning goals — organize cards around what you're actually working toward. • Daily review queue — see only what's due today, with no endless decks and no overwhelm. • Quiz mode — test recall with AI-powered quizzes. • Streaks & achievements — build a memory habit you'll keep. • One gentle daily reminder — show up for a few focused minutes, then get on with your day. • Your memory coach — guidance that keeps you consistent. Knojo is a dojo for your memory — disciplined, quiet, and designed to fight overwhelm instead of adding to it. Whether you're preparing for an exam, learning a language, prepping for interviews, or just refusing to forget the books you read, Knojo protects what you learn before it fades. Free to start. Upgrade to Pro for unlimited AI cards and quizzes. Download Knojo and start remembering what matters. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Frontend Masters4 screens
Knojo4 screens

Verdict

The call

The clearest difference is update cadence: Knojo at every 5 days against Frontend Masters's every 3 weeks. Frontend Masters's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases 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. Frontend Masters sells 2 in-app purchases, starting at $39.99 per month and Knojo sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Frontend Masters ships an update every 3 weeks, Knojo every 5 days. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Frontend Masters versus Knojo: the parameters behind the verdict, then further details
ParameterFrontend MastersKnojo
PriceFreeFree
Rating4.7 (347 ratings) — better—
Positive reviews79.3% of reviews—
Number of ratings347 — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size40 MB53 MB
Age rating4+4+
DeveloperMJG International, LLCAndrei Andrianov

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

Knojo

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
2 purchases

Knojo

Subscriptions2
  • Knojo Pro Monthly$4.991 Month
  • Knojo Pro Yearly$34.991 Year

Questions

Is Frontend Masters free?
Frontend Masters is free to download, with in-app purchases available.
Is Knojo free?
Knojo is free to download, with in-app purchases available.
Do Frontend Masters or Knojo have ads?
Neither Frontend Masters nor Knojo shows ads.
Which is updated more often, Frontend Masters or Knojo?
Frontend Masters ships an update every 3 weeks, and Knojo every 5 days. Most recently, Frontend Masters was updated on October 29, 2026 and Knojo on October 8, 2026.

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