DEF-ISL vs SpreadTheSign

DEF-ISL has no write-up on Specifiction yet; its figures are above.

SpreadTheSign is a multilingual sign language dictionary that lets users look up signs through video. Its collection contains more than 600,000 videos across 23 sign languages, including ASL and BSL. Users can search for words and sentence examples, compare how the same word is signed in different languages, and slow videos to follow movements. The app also includes hand alphabets, fingerspelling and baby signs, and users can save signs to favorites. It is available on the web, Android and iOS, with video as its lesson format. The maker presents it as a reference for sign language learners, families, educators, interpreters and people who need to check a sign. The free plan is listed at free; the iOS app is free with in-app purchases, including a Pro Version for €599, paid once. New words, videos and language coverage are added regularly, though content availability can differ by language. The developer is Europeiskt Teckenspråkcenter, with an address in Örebro, Sweden.