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Sign ASL

What Sign ASL is
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 suits
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 it does well
- 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
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | 40,000+ video signs · 150+ contributing signers · unlimited access | Free |
As signasl.org lists them, read 30 Sept 2026. The maker's own page has the final word.
Getting started
- Visit the Sign ASL website or download its Android or iOS app.
- Open the service without creating an account or logging in.
- Search for an ASL word or phrase.
- Compare the available video signs and their variations.
- On iOS, save favorites for offline viewing if useful.
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.
Questions
Is Sign ASL free?
Yes. The Free plan costs nothing and provides unlimited access to more than 40,000 video signs.
Which platforms are supported?
Sign ASL is available on the web, Android and iOS.
Does Sign ASL require an account?
No. The Android and iOS apps do not require an account, registration, login or personal profile.
Can signs be viewed offline?
The iOS app supports offline viewing of favorites. The service also lists offline access.
Which signed language does it cover?
Sign ASL covers American Sign Language (ASL).
How does the service handle app searches and advertising?
App search terms are sent to Sign ASL servers, and search requests are logged anonymously for service improvement. The mobile apps use Google AdMob ads and may process basic device information.
Facts from Sign ASL's own pages
- Account requirement
- The iOS and Android apps require no account, registration, login, or personal profile. · signasl.org, 30 Sept 2026
- Advertising
- The mobile apps use Google AdMob ads, may process basic device information, and state that Sign ASL does not sell personal user data or perform cross-app behavioral tracking. · signasl.org, 30 Sept 2026
- Analytics
- The website uses Google Analytics and describes the visitor information as anonymous. · signasl.org, 30 Sept 2026
- Audience
- Sign ASL is built for learners, teachers, and the Deaf community. · signasl.org, 30 Sept 2026
- Contributors
- The video signs are contributed by more than 150 signers. · signasl.org, 30 Sept 2026
- Core features
- The service provides quick search, sign variation comparison, and mobile learning access. · signasl.org, 30 Sept 2026
- Data handling
- App search terms are sent to Sign ASL servers and search requests are logged anonymously for service improvement. · signasl.org, 30 Sept 2026
- Definitions
- Dictionary and word-definition information comes from WordNet by Princeton University. · signasl.org, 30 Sept 2026
- Headquarters
- Northampton, United Kingdom · signasl.org, 28 Sept 2026
- Infrastructure
- The service is powered by Cloudflare and AWS Lambda, Lightsail, API Gateway, S3, and RDS. · daniel-mitchell.com, 30 Sept 2026
- iOS features
- The iOS app supports recent and popular signs, looping playback, alternative-sign navigation, favorites with offline viewing, dark mode, and improved offline startup. · daniel-mitchell.com, 30 Sept 2026
- Mobile apps
- Sign ASL is available on Android and iOS for searching, comparing, and viewing the site's video signs, with free downloads. · signasl.org, 30 Sept 2026
- Purpose
- Sign ASL lets users search and compare thousands of American Sign Language words and phrases. · signasl.org, 30 Sept 2026
- Sign variation
- Multiple signs for one word can reflect different meanings or regional variations. · signasl.org, 30 Sept 2026
- Video library
- The site lists more than 40,000 video signs. · signasl.org, 30 Sept 2026
- Video sources
- Videos come from sources including StartASL, SMARTSign Dictionary, Elemental ASL Concepts, DeafTec, SignSchool, ASL Signbank, and Project CLIMB. · signasl.org, 30 Sept 2026
Where Sign ASL stands on Freedom251
- Sign Language Apps#18 of 34