SignSchool review

SignSchool is a free ASL resource that works on desktop, iOS and Android. Its dictionary is the main draw: you can browse thousands of signs from a diverse group of signers and dialects, and search by sign, topic or handshape, which is handy when you saw a sign and do not know the English word for it. The website adds interactive exercises, quick lectures and reviews in a modular curriculum, while learning games drill signs by topic or handshape. A fingerspelling game and a daily Sign of the Day, delivered by email or push notification, keep practice going. There is also a classroom version for schools. The limits are depth and freshness: SignSchool teaches vocabulary more than ASL grammar, and the iOS app's last listed update was in October 2024. Use it as a free vocabulary tool next to a course.

Who it is for

Learners and classrooms that want free ASL vocabulary practice with no subscription.

Price

Free website and apps.

SignSchool is a fun and free resource for learning ASL at your own pace.
Quoted from the vendor pricing page on November 8, 2026.

Key features

• Dictionary searchable by sign, topic or handshape
• Thousands of signs from a diverse group of signers and dialects
• Learning games to review signs by topic or handshape
• Fingerspelling game and a daily Sign of the Day
• Classroom tools optimized for schools

Strengths and weaknesses

• Strength: Free on desktop, iOS and Android
• Strength: Search by handshape helps when you saw a sign but do not know the word
• Strength: Classroom version for teachers
• Weakness: Teaches vocabulary more than grammar
• Weakness: The iOS app was last updated in October 2024
• Weakness: Lighter on structured lessons than paid course apps

Key facts

• Price: Free
• Platforms: Desktop, iOS and Android
• Dictionary search: By sign, topic or handshape
• Daily practice: Sign of the Day
• For schools: Classroom tools

Where it ranks

SignSchool is No. 6 in our Best Sign Language Apps verdict.