Comparison

ASL Dictionary vs Duolingo

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

Head to head
About

ASL Dictionary

This app provides a comprehensive video dictionary for American Sign Language, featuring over 5,200 signed words, phrases, and idioms. It allows users to translate English into ASL, covering the alphabet, numbers, and common expressions. The educational tool is designed for learning sign language through visual instruction.

Highlights
  • Over 5,200 signed words
  • English to ASL translation
  • Alphabet and numerical system
  • Common English phrases and idioms
  • Finger spelled alphabet
  • Offline access to all videos
  • Dark Mode
Features
Currently charting
Read full description

ASL Sign Language Dictionary. Over 5,200 Signed words in ASL. The most complete ASL American Sign Language Video Dictionary. Translate English into ASL, from A-Z, plus the entire numerical system, common English phrases, symbols and much more. A must have educational iPhone, and iPad app. **One time fee, no ad's and nothing else to pay for. FEATURES • Over 5,200 signs from A-Z • 765 Multiple meaning words signed • Multiple word signs such as “don’t want” & “hard of hearing” • 473 Idioms translated • Time • Money • Dates, Months, Years • General numbers • Finger Spelled Alphabet • Symbols • Common Phrases like “You’re too late” • Dark Mode (Found under device Settings, Display and Brightness) New feature: Swipe video screen to load next or previous video Learn Sign Language, by watching our professional Sign Language interpreter and instructor sign over 5,200 individual and multiple word signs. ASL is the first language for people who are deaf. OVER 5,200 SIGNED WORDS **No Internet required. (All 5200 videos are included in the ASL Dictionary) **Note: If you are a hearing person, there is no sound with this application. **Comments, questions or support, please contact us at appsavers@gmail.com ***Guaranteed to work perfectly. If you have an issue please email us for help at appsavers@gmail.com Thank You*** THANK YOU

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

Screenshots

ASL Dictionary4 screens
Duolingo4 screens

Verdict

The call

The clearest difference is price: Duolingo at Free against ASL Dictionary's $4.99. Duolingo also leads on update cadence (weekly vs every 5 months) and ratings volume (5.5M vs 1.3K). ASL Dictionary's advantage is in-app purchases (none vs 28) and ads (none vs shown). On rating 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

Duolingo is free to download; ASL Dictionary costs $4.99 up front. Duolingo sells 16 in-app purchases, starting at $9.99 per month. ASL Dictionary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for ASL Dictionary against 4.7 for Duolingo. That said, the two scores are not equally well evidenced: Duolingo has 5.5M ratings behind it against 1.3K, so its average is the more settled of the two. Written reviews are what separate them: 82% of ASL Dictionary's written reviews are positive against 65% of Duolingo's.

UpkeepUpdate frequency

ASL Dictionary ships an update every 5 months, Duolingo weekly. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

Scorecard9 real differences · 2 level
ASL Dictionary versus Duolingo: the parameters behind the verdict, then further details
ParameterASL DictionaryDuolingo
Price$4.99Free — better
Rating4.7 (1.3K ratings)4.7 (5.5M ratings)
Positive reviews82.1% of reviews — better64.6% of reviews
Number of ratings1.3K5.5M — better
Update frequencyEvery 5 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#106#1 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size154 MB489 MB
Age rating4+4+
DeveloperSoftware Studios LLCDuolingo, Inc

Customer experience

ASL Dictionary

All ratings1,326 ratings
Positive95.3%
Neutral2.9%
Negative1.7%
Written reviews78 reviews
Positive82.1%
Neutral7.7%
Negative10.3%

Duolingo

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

User reviews

ASL Dictionary

From 1.3K App Store ratings

What we love

  • 👍 Helpful for learning ASL
  • 🚀 Easy to use and navigate
  • 💡 Useful for communicating with deaf/hard of hearing individuals
  • 🔍 Extensive word/sign database
  • ⏱️ Slow motion and loop features helpful for learning

Room to improve

  • 🔍 Some signs are outdated or incorrect
  • 🔍 Limited selection of common phrases and basic conversational signs
  • 🔍 Video quality and clarity could be improved
  • 🔍 Lack of explanations/instructions on how to properly perform signs
  • 🐛 App crashes or stops working after updates

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

Bugs and requests

ASL Dictionary

Reported bugs

3 issues
  • Some videos stop playing or don't load properly
  • Loop feature not working consistently
  • Compatibility issues with newer iOS versions

Requested features

5 requests
  • Add more common phrases and conversational signs
  • Provide written explanations and instructions for signs
  • Improve video quality and clarity
  • Add bookmarking/favorites feature to save frequently used signs
  • Implement a search function to quickly find specific signs

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

In-app purchases

None

ASL Dictionary

No 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

Questions

Is ASL Dictionary free?
ASL Dictionary costs $4.99, with no in-app purchases.
Is Duolingo free?
Duolingo is free to download, with in-app purchases available.
Which has better reviews, ASL Dictionary or Duolingo?
ASL Dictionary and Duolingo are both rated 4.7 out of 5 on the App Store, from 1.3K and 5.5M ratings respectively.
Do ASL Dictionary or Duolingo have ads?
Duolingo shows ads; ASL Dictionary does not.
Which is updated more often, ASL Dictionary or Duolingo?
ASL Dictionary ships an update every 5 months, and Duolingo weekly. Most recently, ASL Dictionary was updated on September 22, 2026 and Duolingo on September 25, 2026.
Which is more popular, ASL Dictionary or Duolingo?
ASL Dictionary currently peaks at #106 in the App Store charts, and Duolingo at #1. Chart position reflects recent download velocity rather than total install base.

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