Best Asl Dictionary Sign Apps

225+ iOS apps curated and reviewed

3.9 avg rating
17 free apps
Updated October 2026

Every iPhone needs a few good asl dictionary sign apps. We benchmark 225+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Asl Dictionary Sign Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ASL DictionaryASL Dictionary$4.994.7★ (1.3K)NoNoNov 2026
2Spread the Sign ASL DictionarySpread the Sign ASL DictionaryFree4.9★ (135)NoYesNov 2026
3Sign ASLSign ASLFree4.1★ (90)YesNoOct 2026
4ASL Dictionary Sign LanguageASL Dictionary Sign Language$7.994.7★ (2K)NoNoOct 2026
5Write Sign Language Dictionary - Offline AmericanSign LanguageWrite Sign Language Dictionary - Offline AmericanSign LanguageFree3.0★ (1)NoNoMay 2026
6ASL American Sign LanguageASL American Sign LanguageFree4.5★ (3K)YesYesOct 2026
7ASL Interactive DictionaryASL Interactive DictionaryFree3.7★ (7)NoNoOct 2026
8ASL: Sign Language Lessons.ASL: Sign Language Lessons.Free3.6★ (9)NoYesOct 2026

Top Picks for Asl Dictionary Sign

ASL Dictionary#1

ASL Dictionary by Software Studios LLC

ASL Sign Language
Editor's Choice
📚 Education
4.7😊(1.3K ratings)
$4.99
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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.

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  • 🔍 Some signs are outdated or incorrect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
4.9😐(135 ratings)
FreeIn-App Purchases
Spread the Sign ASL Dictionary screenshot 1
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Access the world's largest sign language dictionary, featuring over 300,000 signs. New content is added annually, expanding the library of languages, words, and signs.

What We Love

  • 👍 Helpful for learning sign language
  • 📚 Large vocabulary and sign access
  • 🌐 Supports multiple sign languages
  • 💡 Useful for comparing sign languages
  • ✅ Reliable for cross-checking
  • 🗣️ Helps understand regional variations
  • 🌟 Quality videos
  • 👨‍🏫 Recommended by teachers
  • 👶 Useful for teaching babies
  • 🔄 Supports sentence construction
  • 🌍 Good for travelers
  • 💯 Comprehensive content (website)
  • 🆓 Free basic access (initially)

Room to Improve

  • 💸 Frequent paywalls and upgrade prompts
  • 🐛 App freezes and crashes often
  • 🚫 Many videos not playing/blank
  • ❌ Functionality issues after updates
  • 📉 Performance degradation over time
  • 🤔 Inconsistent sign variations
  • 🐌 Slow loading and performance
  • 🤷‍♂️ Unclear UI and navigation
  • 🔒 Paid version not always unlocking content
  • 🪲 Bugs in favorited lists
  • 🌐 Requires internet connection
  • 👎 Misleading free download
  • 🚫 Some languages missing
  • ⏳ Outdated design
  • ❌ Incorrect or inappropriate signs
  • 😵‍💫 Difficulty for beginners to follow videos
  • 💰 Paid for features that don't work
  • 🚫 Some features not available offline
Sign ASL#3

Sign ASL by Daniel Mitchell

ASL Sign Dictionary
Worth Considering
📚 Education
4.1😐(90 ratings)
FreeAds
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Access a comprehensive ASL sign dictionary with thousands of words and phrases. This app provides easy access to over 20,000 video demonstrations of American Sign Language signs directly on your mobile device.

What We Love

  • 👍 Easy to navigate on mobile
  • 🚀 Fast loading videos
  • 👍 Small app size
  • 👍 Excellent resource for ASL
  • 👍 Convenient and simple interface
  • 👍 Shows multiple sign variations
  • 👍 Helpful for vocabulary building
  • 👍 Quick and clear videos
  • 👍 Good for casual learners
  • 👍 Useful for educators
  • 👍 Great for hearing people learning ASL
  • 👍 Well-organized
  • 👍 Appreciated for being free
  • 👍 Shows male vs. female signing
  • 👍 Shows regional accents
  • 👍 Best ASL app used
  • 👍 No nonsense fluff
  • 👍 Keeps queue of recent words

Room to Improve

  • 😠 Inappropriate ad content
  • 😠 Must go to search bar for lessons
  • 🐛 Videos do not play
  • 🐛 Video player covers signs
  • 🐛 Videos play too fast
  • 🐛 Some signs are incorrect
  • 🐛 Disorganized dictionary
  • 🐛 Videos not high quality
  • 🐛 Missing some signs
  • 🐛 Uses videos without permission
  • 🐛 Slur appears in search results
  • 🐛 Videos are confusing

More Asl Dictionary Sign apps to explore

FAQ about Asl Dictionary Sign

What are the best asl dictionary sign apps for iPhone?
ASL Dictionary tops our asl dictionary sign apps ranking as of October 2026, with a 4.7-star average from 1.3K App Store ratings, and it's priced at $4.99.
Yes — 17 of the top asl dictionary sign apps we rank are free to download, including Spread the Sign ASL Dictionary and Sign ASL.
ASL Dictionary has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 225+ asl dictionary sign apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.