1. Home
  2. Topics
  3. Sign School Dictionary

Best Sign School Dictionary Apps

250+ iOS apps curated and reviewed

4.3 avg rating
17 free apps
Updated August 2026

Out of 250+ sign school dictionary apps on iOS, 17 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 (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1SignSchoolSignSchoolFree4.5★ (136)NoNoAug 2026
2ASL Sign Language Pocket SignASL Sign Language Pocket SignFree4.8★ (38K)NoYesAug 2026
3Signing Savvy Member AppSigning Savvy Member AppFree3.4★ (42)NoNoMay 2026
4Intersign ASL - Sign LanguageIntersign ASL - Sign LanguageFree4.7★ (4.7K)NoYesAug 2026
5ASL Sign Language | AslingoASL Sign Language | AslingoFree4.7★ (1.4K)YesYesAug 2026
6ASL Dictionary Sign LanguageASL Dictionary Sign Language$7.99 was $9.994.7★ (2K)NoNoAug 2026
7Write Sign Language Dictionary - Offline AmericanSign LanguageWrite Sign Language Dictionary - Offline AmericanSign LanguageFree3.0★ (1)NoNoMay 2026
8Sign ASLSign ASLFree4.1★ (90)YesNoAug 2026

Top Picks for Sign School Dictionary

SignSchool#1

SignSchool by SignSchool Technologies LLC

Learn American Sign Language
Editor's Choice
📚 Education
4.5😊(136 ratings)
Free
SignSchool screenshot 1
SignSchool screenshot 2
SignSchool screenshot 3
SignSchool screenshot 4
SignSchool screenshot 5

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

Room to Improve

  • 🐛 Blank topics page, some features not working
  • 🐛 Videos load slowly, hard to see signs
  • 🐛 Missing common words in dictionary
ASL Sign Language Pocket Sign#2

ASL Sign Language Pocket Sign by Trent Ewald

Video ASL lessons learn fast!
Strong Contender
📚 Education
4.8😊(38K ratings)
FreeIn-App Purchases
ASL Sign Language Pocket Sign screenshot 1
ASL Sign Language Pocket Sign screenshot 2
ASL Sign Language Pocket Sign screenshot 3
ASL Sign Language Pocket Sign screenshot 4
ASL Sign Language Pocket Sign screenshot 5

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

Room to Improve

  • 🐛 Incorrect signs in some lessons
  • 🐛 Flashcard answers always 'yes'
  • 💰 Limited free content, need to pay for more
Signing Savvy Member App#3

Signing Savvy Member App by Signing Savvy, LLC

Worth Considering
📚 Education
3.4(42 ratings)
Free
Signing Savvy Member App screenshot 1
Signing Savvy Member App screenshot 2
Signing Savvy Member App screenshot 3
Signing Savvy Member App screenshot 4

Access a comprehensive sign language dictionary with thousands of high-resolution videos of ASL signs and other common signs. Build and share custom vocabulary lists, create virtual flashcards for practice, and utilize other learning tools. This app is designed for members of the Signing Savvy platform.

More Sign School Dictionary apps to explore

4
Intersign ASL - Sign Language
Intersign ASL - Sign Language
Intersign ASL - Sign Language
Learn ASL while you have fun!
Free

Learn American Sign Language (ASL) through expert-led lessons and interactive games. This app offers over 370 lessons across 17 themed sections, adapting to your learning pace. It includes a built-in dictionary and rewards to keep you motivated.

Expert-led ASL instruction370+ lessons in 17 themesStep-by-step learning
📚 Education
(4.7K)
free with in-app purchases
5
ASL Sign Language | Aslingo
ASL Sign Language | Aslingo
ASL Sign Language | Aslingo
Learn Video Lesson, Dictionary
Free

Learn American Sign Language with interactive lessons and a comprehensive dictionary. This app offers personalized learning plans, vocabulary trainers, and practice quizzes to enhance fluency. Accessible anytime, anywhere, it's designed for all levels of learners.

Personalized learning plansInteractive bite-sized lessonsComprehensive ASL curriculum
📚 Education
(1.4K)
free with in-app purchases
6
ASL Dictionary Sign Language
ASL Dictionary Sign Language
ASL Dictionary Sign Language
ASL Sign Language
$7.99
$9.99 | 20% OFF

Learn and master American Sign Language with an extensive interactive dictionary featuring over 5000 ASL videos. Practice your skills with quizzes, create custom study lists, and utilize features like slow-motion playback and fingerspelling exercises. This comprehensive tool requires no internet connection.

5000+ ASL video translationsFingerspell recognition and exercisesInteractive quizzes
📚 Education
(2K)
paid
7
Write Sign Language Dictionary - Offline AmericanSign Language
Write Sign Language Dictionary - Offline AmericanSign Language
Write Sign Language Dictionary - Offline AmericanSign Language
by Le Thi Quynh Ny
Free

Learn American Sign Language with an extensive offline dictionary. Explore over 8,000 signs, study topics with flashcards, and create personalized learning lists. Includes a manual for sign instructions.

Offline ASL dictionary8,000+ signsTopic-based flashcards
📚 Education
(1)
free
8
Sign ASL
Sign ASL
Sign ASL
ASL Sign Dictionary
Free

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.

Searchable ASL dictionaryThousands of words and phrasesOver 20,000 video demonstrations
📚 Education
(90)
ad-supported
9
Teach Me Sign BSL Dictionary
Teach Me Sign BSL Dictionary
Teach Me Sign BSL Dictionary
Master BSL with Ease & Fun
Free
📚 Education
(0)
10
ASL Dictionary
ASL Dictionary
ASL Dictionary
American Sign Language
$4.99

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.

Over 5,200 signed wordsEnglish to ASL translationAlphabet and numerical system
📚 Education
(1.3K)
paid
11
ASL Bloom - Sign Language
ASL Bloom - Sign Language
ASL Bloom - Sign Language
Learn, Grammar & Dictionary
Free

Master American Sign Language with a comprehensive curriculum featuring over 120 video lessons and 1300 signs. Engage with interactive tools, grammar insights, and AI-driven learning to build confidence and fluency.

Comprehensive curriculum with 120+ video lessonsInteractive and gamified learning toolsDetailed video demonstrations of signs
📚 Education
(33K)
free with in-app purchases
12
NZSL Dictionary
NZSL Dictionary
NZSL Dictionary
by David McKee
Free

Access a comprehensive dictionary of New Zealand Sign Language with diagrams and videos for thousands of words and phrases. Learn a new sign daily with the "Word of the Day" feature. Diagrams are available offline, while videos require an internet connection.

Over 4,000 NZSL signsDiagrams and videosOffline diagram access
🔍 Reference
(8)
free
13
Sign Learn
Sign Learn
Sign Learn
by Islrtc NewDelhi
Free
📚 Education
(0)
14
ASL: Sign Language Lessons.
ASL: Sign Language Lessons.
ASL: Sign Language Lessons.
Hand Talk Learning, Dictionary
Free

Learn American Sign Language with interactive lessons, a comprehensive dictionary, and a text-to-sign translator. Develop fingerspelling, vocabulary, and grammar skills through engaging exercises and visual aids.

Interactive tutorialsExtensive dictionaryText-to-sign translator
🔧 Utilities
(7)
subscription
15
ASL Kids - School
ASL Kids - School
ASL Kids - School
Learn American Sign Language
$2.99
📚 Education
(0)
16
Spread the Sign ASL Dictionary
Spread the Sign ASL Dictionary
Spread the Sign ASL Dictionary
Compare 23 Sign Languages
Free

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.

Largest sign language dictionaryOver 300,000 signsNew content added yearly
🔍 Reference
(61)
free with in-app purchases
17
Love to Learn Sign Language
Love to Learn Sign Language
Love to Learn Sign Language
Learn Bangla Sign Language
Free
📚 Education
(0)
18
One Dictionary
One Dictionary
One Dictionary
Extensible offline dictionary
Free
🔍 Reference
(0)
19
German−English dictionary
German−English dictionary
German−English dictionary
by Ilya Mukhortov
Free

This offline dictionary provides instant German-English and English-German translations. It includes a vocabulary trainer to help you learn new words, pronunciation guides, and automatic language detection. The app also offers an online translator and allows you to save words to a personal dictionary.

Offline dictionaryVocabulary trainerPronunciation audio
📚 Education
(0)
ad-supported
20
Sign Language Translator
Sign Language Translator
Sign Language Translator
Fingerspelling
Free

Learn American Sign Language through interactive lessons. Practice fingerspelling your name, numbers, and common phrases. This educational tool helps build foundational ASL skills.

Fingerspelling practiceLearn names and numbersPhrase learning
📚 Education
(23)
free

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 August 2026, with a 4.5-star average from 136 App Store ratings, and it's free to download.
Yes — 17 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 August 2026.
We track 250+ sign school dictionary apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
SignSchool is a free mobile application designed to help users learn American Sign Language (ASL). It provides a comprehensive dictionary of signs, categorized lessons, and interactive practice tools to facilitate learning.
The app features a vast ASL dictionary with diverse signers and dialects, hundreds of sign categories, a slow-motion playback option for detailed sign viewing, a Fingerspelling Game to enhance skills, and a 'Sign of the Day' feature for daily learning and review.