Sign ASL is a free service for looking up and comparing American Sign Language words and phrases through video. Its library lists more than 40,000 video signs contributed by over 150 signers. Users can search quickly and compare alternatives; multiple signs for a word may reflect different meanings or regional variation. The service is available on the web and in Android and iOS apps. The iOS app includes recent and popular signs, looping playback, navigation among alternatives, favorites with offline viewing, dark mode, and improved offline startup. The mobile apps require no account, registration, login, or personal profile. Search terms are sent to Sign ASL servers, and requests are logged anonymously for service improvement. The apps use Google AdMob advertising and may process basic device information. Sign ASL says it does not sell personal user data or perform cross-app behavioral tracking. The service is built for learners, teachers, and the Deaf community. Dictionary and word-definition information comes from WordNet by Princeton University.
Who it is for
Sign ASL suits ASL learners and teachers, as well as members of the Deaf community, who want to search or compare video signs. Its mobile apps allow sign lookup without creating an account.
What is good
- More than 40,000 video signs are listed
- Signs come from over 150 contributors
- Mobile apps require no account or login
- iOS favorites support offline viewing
- Free on web, Android, and iOS
What to know first
- Mobile apps use Google AdMob ads
- Search terms are sent to Sign ASL servers
- Apps may process basic device information
Verdict
Sign ASL provides a large video dictionary with sign comparison and mobile access. Consider its stated search logging and mobile advertising when deciding whether to use the apps.
Sign ASL plans and pricing
All plansCompared on sign language apps
- Free plan
- Yes
- Signed languages
- American Sign Language (ASL)
- Lesson format
- video
- Offline access
- Yes
- Dictionary lookup
- Yes
- Supported platforms
- Web, iOS, Android
