Comparison

Duolingo vs Study Quest

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

Head to head
About

Duolingo

Learn languages, math, music, and chess through fun, bite-sized lessons. Build vocabulary, grammar, and real-world skills with a science-based methodology. Track progress and stay motivated with a global community.

Highlights
  • Bite-sized language lessons
  • Speaking, reading, listening, writing practice
  • Math skills development
  • Music reading and playing
  • Chess strategy and gameplay
  • Progress tracking and rewards
Features
Read full description

Learn a new language, chess & more with the world's most downloaded education app! Duolingo is the fun, free app for learning 40+ languages through quick, bite-sized lessons. Practice speaking, reading, listening & writing to build your vocabulary & grammar skills. Designed by learning experts & loved by hundreds of millions worldwide, our lessons make learning effective & fun and help you prepare for real conversations in Spanish, French, Japanese, Korean, Chinese, Italian, German, English and more. And now, you can learn CHESS on Duolingo! Whether you're a total beginner or looking to level up your game, you'll love learning chess the Duolingo way. Play matches and fun chess lessons for all levels, no matter the language - chess, ajedrez, xadrez, schach, Шахматы, الشطرنج. • Chess: Learn the moves, level up your game & play matches in our Chess course. Learn the basics, solve fun chess puzzles & improve your strategy with guided lessons. Whether you're new to chess or already play, our course is designed to help you have fun and build real skills. Checkmate! • Math: Forget lectures and math worksheets! Built by learning experts, our Math course makes math feel like a game. Boost learning and fight the summer slide with standards-aligned math lessons for elementary school, middle school, and high school students. • Music: Learn how to read music & play songs in our Music course, no instrument needed! Using an on-screen keyboard, you'll learn bit-by-bit. Whether you're learning a language for travel, school, career or your brain health, you'll love learning with Duolingo. Why Duolingo? • Duolingo is fun & effective. Game-like language lessons & fun characters help you build speaking, reading, listening, & writing skills, plus enjoy fun chess & competitive online chess in one app. • Duolingo works. Designed by learning experts, Duolingo has a science-based teaching methodology proven to foster long-term knowledge retention across language lessons & chess lessons alike. • Track your progress. Work toward your learning goals with playful rewards & achievements when you make practicing language lessons or chess online part of your daily habit. • Join millions of learners. Stay motivated with competitive Leaderboards as you learn languages & play chess online alongside our global community. • Every course is free. Learn Spanish, French, German, Italian, Russian, Portuguese, Turkish, Dutch, Irish, Danish, Swedish, Ukrainian, Esperanto, Polish, Greek, Hungarian, Norwegian, Hebrew, Welsh, Arabic, Latin, Hawaiian, Scottish Gaelic, Vietnamese, Korean, Japanese, English, & even High Valyrian! And now, learn Math, Music & improve your Chess skills with fun, bite-sized lessons. What the world is saying about Duolingo: "Far & away the best language-learning app." - The Wall Street Journal "This free app & website is among the most effective language-learning methods I've tried… lessons come in the form of brief challenges, speaking, translating, answering multiple-choice questions, that keep me coming back for more." - The New York Times "Duolingo may hold the secret to the future of education." - TIME Magazine "Duolingo is cheerful, lighthearted & fun." - Forbes "I Can't Stop Playing Duolingo Chess." - Wired If you like Duolingo, try Super Duolingo for 14 days free! Learn a language fast with no ads & get fun perks like Unlimited Energy & Monthly Streak Repair. If you choose to purchase Super Duolingo, payment will be charged to your Apple account, and your account will be charged for renewal within 24-hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the App Store 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. Privacy Policy: https://www.duolingo.com/privacy Terms of Service: https://www.duolingo.com/terms

About

Study Quest

Embark on an epic quest to master languages by battling monsters and casting spells. Create a hero, use interactive flashcards, and compete with friends to boost motivation and retention. This app supports multiple languages and is suitable for all skill levels.

Highlights
  • Hero creation and customization
  • Interactive flashcard books
  • Gem-matching spell casting
  • Monster battles in vibrant worlds
  • Co-op and competitive multiplayer
  • Smart algorithm for retention
Features
Read full description

Create a hero and embark on an epic quest of language mastery! Supported languages: English · French · German · Italian · Japanese · Korean · Spanish ...with more coming soon! - Create your own, or discover official and community created books of interactive flashcards. - Match gems then answer questions to turn them into powerful spells. - Battle monsters across a host of beautiful, vibrant worlds. - Co-operate and compete with friends to boost your motivation. - Flashcards are scheduled by smart algorithms, proven to ensure maximum retention. Centre your studies around the app, or use it as an aid in tandem with other courses. Whatever your experience and skill level, Study Quest is an essential part of your language learning toolkit!

Screenshots

Duolingo4 screens
Study Quest4 screens

Verdict

The call

The clearest difference is rating: Duolingo at 4.7 against Study Quest's 4.1. Duolingo also leads on ratings volume (5.5M vs 18) and update cadence (weekly vs monthly). Study Quest's advantage is ads (none vs shown) and iOS requirement (11.0 vs 17.0). On price, review sentiment, in-app purchases and monetization model 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. Duolingo sells 16 in-app purchases, starting at $9.99 per month and Study Quest sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Duolingo holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Duolingo has 5.5M ratings behind it against 18, so its average is the more settled of the two. Written reviews split almost evenly too, at 65% and 65% positive.

UpkeepUpdate frequency

Duolingo ships an update weekly, Study Quest monthly. The most recent releases landed on September 28, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 5 level
Duolingo versus Study Quest: the parameters behind the verdict, then further details
ParameterDuolingoStudy Quest
PriceFreeFree
Rating4.7 (5.5M ratings) — better4.1 (18 ratings)
Positive reviews64.7% of reviews64.7% of reviews
Number of ratings5.5M — better18
Update frequencyWeekly — betterMonthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#1 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.011.0 — better
Further details — not scored
Size489 MB67 MB
Age rating4+4+
DeveloperDuolingoFuturetro Studios

Customer experience

Duolingo

All ratings5,464,639 ratings
Positive94.2%
Neutral2.4%
Negative3.4%
Written reviews29,503 reviews
Positive64.7%
Neutral9.6%
Negative25.7%

Study Quest

All ratings18 ratings
Positive72.2%
Neutral11.1%
Negative16.7%
Written reviews17 reviews
Positive64.7%
Neutral23.5%
Negative11.8%

Bugs and requests

Duolingo

Reported bugs

3 issues
  • Freezing or crashing during lessons
  • Incorrect translations or answers marked wrong
  • Inconsistent behavior of certain features like leagues

Requested features

5 requests
  • Add more languages, especially less common ones
  • Improve grammar lessons and explanations
  • Allow more flexibility in navigating the course content
  • Provide better feedback and corrections for mistakes
  • Sync progress and features consistently across app and web

Study Quest

Not enough reviews yet to summarise bugs or requests.

In-app purchases

16 purchases

Duolingo

Subscriptions10
  • Super Duolingo7 Days trial$9.991 Month
  • Super Duolingo7 Days trial$12.991 Month
  • Super Duolingo14 Days trial$12.991 Month
Show 7 more
  • Super Duolingo2 variants$59.991 Year
  • Super Duolingo14 Days trial2 variants$79.991 Year
  • Super Duolingo14 Days trial4 variants$83.991 Year
  • Super Duolingo7 Days trial$83.991 Year
  • Super Duolingo7 Days trial4 variants$95.991 Year
  • Super Duolingo1 Month trial$119.991 Year
  • Super Duolingo7 Days trial$119.991 Year
One-time6
  • Chest of Gems$0.99
  • Barrel of Gems (1200)$4.99
  • Chest of Gems (1200)$4.99
Show 3 more
  • Cart of Gems (3000)$9.99
  • Barrel of Gems (3000)$9.99
  • Cart of Gems (6500)$19.99
3 purchases

Study Quest

One-time3
  • Pile of Oins$0.99
  • Bag of Oins$1.99
  • Chest of Oins$2.99

Questions

Is Duolingo free?
Duolingo is free to download, with in-app purchases available.
Is Study Quest free?
Study Quest is free to download, with in-app purchases available.
Which has better reviews, Duolingo or Study Quest?
Duolingo is rated higher. Duolingo averages 4.7 out of 5 from 5.5M ratings, while Study Quest averages 4.1 from 18 ratings.
Do Duolingo or Study Quest have ads?
Duolingo shows ads; Study Quest does not.
Which is updated more often, Duolingo or Study Quest?
Duolingo ships an update weekly, and Study Quest monthly. Most recently, Duolingo was updated on September 28, 2026 and Study Quest on June 1, 2026.

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