Comparison

Duolingo vs AI Spanish Learning

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

AI Spanish Learning

Master Spanish with an AI-powered platform designed for serious learners. Improve vocabulary, grammar, pronunciation, and conversational skills through scientifically proven techniques and real-life context.

Highlights
  • AI-powered learning
  • Spaced repetition flashcards
  • Practical conversation simulations
  • Daily grammar and pronunciation lessons
  • Immersive stories for comprehension
  • Contextual vocabulary learning
Features
Read full description

The best app for SERIOUS Spanish learners Welcome to Fluency, the ultimate destination for those eager and serious about mastering the Spanish language. Our app, designed by avid language learners just like you, offers a revolutionary approach to language acquisition, making the journey to fluency not just a dream, but an achievable goal. Why Fluency stands out: All-Inclusive Language Learning Platform: Fluency brings together all essential elements of language learning - vocabulary enhancement, grammar understanding, pronunciation perfection, and conversational practice, encapsulated within one innovative app. AI-Powered Learning Experience: Dive into the future of language learning with our advanced AI technology. It provides a unique, stress-free environment for you to practice speaking and comprehension, ensuring your learning process is as efficient as it is enjoyable. Optimized Learning Techniques: Our methods aren't just innovative; they're scientifically proven. With strategies inspired by extensive academic research, Fluency guarantees a faster and more effective learning curve. Fluency is the language learning app made for serious language learners. No more child's play and games that seem like they were made for kids. If you are serious about learning Spanish this is the app for you. Core Features: Vocabulary Mastery: Embrace the power of the popular Anki style spaced repetition with our flashcards, designed for long-term word retention. Experience the benefits of contextual learning, a method celebrated for its effectiveness in language acquisition. Our vocabulary words are sourced from millions of hours of Spanish television. They are then sorted and shown to you in order of how frequently they are seen in real life. This means that you learn the words you need in the order you need them. Practical Conversations: Test your skills with engaging mock conversations, simulating real-life interactions to prepare you for the world beyond the classroom. Daily Lessons: Our daily lessons focus on grammar and pronunciation, laying down the foundation for a robust understanding of Spanish as recommended by experts. Immersive Stories: Dive into daily stories that not only bolster your comprehension but also enrich your vocabulary. Through these narratives, you'll refine your expressive abilities, a crucial aspect of language mastery. A Research-Driven Journey: Fluency's foundation is built upon solid academic research. Every aspect of our app is meticulously crafted to ensure you're learning Spanish in the most efficient manner possible. A Stress-Free Learning Environment: Forget the fear of speaking a new language. Fluency offers a comforting, AI-enhanced space where you can learn at your own pace, free from anxiety. Join a Community of Learners: By choosing Fluency, you join a vibrant community of Spanish learners. Regardless of your starting point or objective, our app is designed to meet your language learning needs, offering a path to fluency that is both engaging and effective. Begin Your Journey Today: Elevate your Spanish with Fluency. Download now and embark on a transformative journey toward achieving language fluency. Embark on your language learning adventure with Fluency, where each lesson brings you closer to mastery. Our app is not just about learning Spanish; it's about transforming the way you connect with the world. With Fluency, you don't just learn Spanish; you live it. Welcome to a new era of language learning. Welcome to Fluency. SUBSCRIPTION You will need a subscription in order to access the features mentioned above. Each subscription will be automatically renewed unless auto-renew is turned off at least 24 hours before the end of the current payment period. Should you cancel a subscription, you will have access to the features until the end of the current payment period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Duolingo4 screens
AI Spanish Learning4 screens

Verdict

The call

The clearest difference is ads: AI Spanish Learning at none against Duolingo's shown. AI Spanish Learning also leads on iOS requirement (15.1 vs 17.0). Duolingo's advantage is rating (4.7 vs 4.3) and ratings volume (5.5M vs 128). On price, update cadence, 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 AI Spanish Learning sells 11 in-app purchases, starting at $2.99 per 7 days. 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 4.3. That said, the two scores are not equally well evidenced: Duolingo has 5.5M ratings behind it against 128, so its average is the more settled of the two. Written reviews point the same way: 65% of Duolingo's written reviews are positive against 56% of AI Spanish Learning's.

UpkeepUpdate frequency

Duolingo ships an update weekly, AI Spanish Learning every 8 days. The most recent releases landed on September 25, 2026 and September 6, 2026 respectively.

Scorecard6 real differences · 5 level
Duolingo versus AI Spanish Learning: the parameters behind the verdict, then further details
ParameterDuolingoAI Spanish Learning
PriceFreeFree
Rating4.7 (5.5M ratings) — better4.3 (128 ratings)
Positive reviews64.6% of reviews — better56.1% of reviews
Number of ratings5.5M — better128
Update frequencyWeekly — betterEvery 8 days
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 iOS17.015.1 — better
Further details — not scored
Size489 MB49 MB
Age rating4+4+
DeveloperDuolingo, IncFluency Technologies LLC

Customer experience

Duolingo

All ratings5,464,639 ratings
Positive94.2%
Neutral2.4%
Negative3.4%
Written reviews29,453 reviews
Positive64.6%
Neutral9.6%
Negative25.7%

AI Spanish Learning

All ratings128 ratings
Positive82.8%
Neutral3.1%
Negative14.1%
Written reviews41 reviews
Positive56.1%
Neutral2.4%
Negative41.5%

User reviews

Duolingo

From 5.5M App Store ratings

What we love

  • 🤩 Fun and entertaining learning experience
  • 🎉 Motivating streak and league features
  • 🎨 Cute and engaging animations
  • 📚 Effective for learning vocabulary and basics
  • 🤖 Useful AI-powered features like voice lessons

Room to improve

  • 🤖 Issues with voice recognition and pronunciation feedback
  • 🤑 Aggressive monetization tactics and paywall for key features
  • 🤯 Frustrating heart/health system that penalizes mistakes
  • 🤔 Lack of grammar explanations and focus on just memorizing phrases
  • 🤷‍♀️ Inconsistent app experience across platforms

AI Spanish Learning

From 128 App Store ratings

What we love

  • 💡 Innovative AI integration
  • 👍 Great for intermediate learners
  • 🗣️ Improves speaking and writing
  • 📚 Contextual vocabulary
  • 🚀 Efficient learning experience

Room to improve

  • 🐛 Bugs and glitches
  • ❌ Network issues
  • 🤖 Robot-like voice
  • 🔒 Entirely behind paywall
  • 🤔 Inconsistent pricing/offers

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

AI Spanish Learning

Reported bugs

15 issues
  • Network issues for months
  • App won't load after charging
  • AI is exact and unforgiving
  • Cannot advance conversation tab
  • Progress lost due to app returning to home page
Show 10 more
  • Fill in the blank quiz doesn't teach vocabulary
  • Top and bottom of screen cut off
  • Conversation task not marked as completed
  • Improve conversation skills bugged
  • Support contact form errors
  • Cannot activate lifetime membership
  • Payment screen issues
  • Basic text-to-speech audio
  • App freezes on one question
  • Vocabulary lesson ends too quickly

Requested features

8 requests
  • Sync progress to other devices
  • Advance pronunciation section level
  • Option to speak with Latin American AI
  • Lifetime subscription option
  • Ability to revisit reading comprehension tests
Show 3 more
  • Improve conversation skills criteria
  • Tap to translate and assess response in 'ask me anything'
  • Fix UI for iPad Pro

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
11 purchases

AI Spanish Learning

Subscriptions9
  • Fluency Premium Pass3 Days trial$2.997 Days
  • Fluency Premium Pass$2.997 Days
  • Fluency Premium Pass$5.997 Days
Show 6 more
  • Fluency Premium Pass3 Days trial$6.991 Month
  • Fluency Premium Pass$6.991 Month
  • Fluency Premium Pass7 Days trial$12.991 Month
  • Fluency Premium Pass3 Days trial$29.991 Year
  • Fluency Premium Pass$29.991 Year
  • Fluency Premium Pass7 Days trial$59.991 Year
One-time2
  • Lifetime Friends and FamilyFree
  • Lifetime Premium Pass$209.99

Questions

Is Duolingo free?
Duolingo is free to download, with in-app purchases available.
Is AI Spanish Learning free?
AI Spanish Learning is free to download, with in-app purchases available.
Which has better reviews, Duolingo or AI Spanish Learning?
Duolingo is rated higher. Duolingo averages 4.7 out of 5 from 5.5M ratings, while AI Spanish Learning averages 4.3 from 128 ratings.
Do Duolingo or AI Spanish Learning have ads?
Duolingo shows ads; AI Spanish Learning does not.
Which is updated more often, Duolingo or AI Spanish Learning?
Duolingo ships an update weekly, and AI Spanish Learning every 8 days. Most recently, Duolingo was updated on September 25, 2026 and AI Spanish Learning on September 6, 2026.

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