DEF-ISL vs MeLISegno

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

MeLISegno is an app for learning Italian Sign Language (LIS), with lessons, practice activities and an interactive dictionary for looking up signs. Its listing describes 20 modules, 120 lessons and more than 500 signs. Learners can work through quizzes, exercises and interactive dialogues, with notes on LIS grammar and culture. An AI system guides learning and supports memorization. Lessons are self-paced and can be accessed when learners choose. The app has free modules and lessons; premium content is available through monthly or annual subscriptions, though no subscription price is listed. The free version remains usable without a premium purchase. MeLISegno is available on Android, iOS, iPadOS and macOS. The maker says it was developed with Associazione Fedora and describes it as suitable for beginners, families, teachers, educators and others interested in LIS. Google Play says data is encrypted in transit and users can request deletion, while also noting possible collection and sharing of personal information and app activity.