Best Sign School Dictionary Apps

249+ iOS apps curated and reviewed

4.1 avg rating
18 free apps
Updated November 2026

Out of 249+ sign school dictionary apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Sign School Dictionary Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1SignSchoolSignSchoolFree4.5★ (148)NoNoOct 2026
2ASL Sign Language Pocket SignASL Sign Language Pocket SignFree4.8★ (40K)NoYesNov 2026
3Sign ASLSign ASLFree4.1★ (90)YesNoOct 2026
4Write Sign Language Dictionary - Offline AmericanSign LanguageWrite Sign Language Dictionary - Offline AmericanSign LanguageFree3.0★ (1)NoNoMay 2026
5Intersign ASL - Sign LanguageIntersign ASL - Sign LanguageFree4.7★ (4.9K)NoYesNov 2026
6Teach Me Sign BSL DictionaryTeach Me Sign BSL DictionaryFree—NoNoJul 2026
7ASL Sign Language | AslingoASL Sign Language | AslingoFree4.7★ (1.6K)YesYesNov 2026
8SignBuddy: Learn Sign LanguageSignBuddy: Learn Sign LanguageFree——NoNov 2026

Top Picks for Sign School Dictionary

SignSchool#1

SignSchool by SignSchool Technologies LLC

Learn American Sign Language
Editor's Choice
📚 Education
4.5😊(148 ratings)
Free
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Learn American Sign Language at your own pace with this app. It offers a dictionary of thousands of signs, categorized lessons, and a slow-motion feature for detailed viewing. Practice your skills with a daily sign and a fingerspelling game.

What We Love

  • 🚀 Great app, very helpful
  • 👍 Love the app, easy to use
  • 💡 Lots of vocabulary and topics
  • 👍 Good for beginners and refreshers
  • 👍 Appreciate the free app

Room to Improve

  • 🐛 Blank topics page, some features not working
  • 🐛 Videos load slowly, hard to see signs
  • 🐛 Missing common words in dictionary
  • 🐛 Inconsistent or incorrect signs
  • 🐛 Lack of context for sign usage
ASL Sign Language Pocket Sign#2

ASL Sign Language Pocket Sign by Trent Ewald

Video ASL lessons learn fast!
Strong Contender
📚 Education
4.8😊(40K ratings)
FreeIn-App Purchases
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Master American Sign Language with interactive video lessons. Learn the alphabet, common phrases, and baby sign language through engaging questions and a comprehensive dictionary. Connect with your community and expand your communication skills.

What We Love

  • 👍 Easy to learn
  • 🚀 Quick lessons
  • 💡 Helpful dictionary
  • 👍 Fun and engaging
  • 👍 Great for beginners

Room to Improve

  • 🐛 Incorrect signs in some lessons
  • 🐛 Flashcard answers always 'yes'
  • 💰 Limited free content, need to pay for more
  • 🐛 Sentences with unfamiliar signs
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 Sign School Dictionary apps to explore

FAQ about Sign School Dictionary

What are the best sign school dictionary apps for iPhone?
SignSchool tops our sign school dictionary apps ranking as of November 2026, with a 4.5-star average from 148 App Store ratings, and it's free to download.
Yes — 18 of the top sign school dictionary apps we rank are free to download, including SignSchool and ASL Sign Language Pocket Sign.
SignSchool has no ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 249+ sign school dictionary apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.