If you're looking to learn Japanese sign language, Hand Sign Station Lite by MDI.inc is a great app to get started with. This free education and reference app has been developed under the guidance of experts and offers a comprehensive sign language dictionary that includes over 4,500 words and phrases. The app features large animated displays of signs, along with explanations of their origins and instructions for performing them.

The app offers three search options: alphabetical, category-based, and string search. The categories are classified into three levels - major, intermediate, and minor - making it easy to learn sign language thematically. The app also provides sample sentences to help users understand the correct usage of signs and how to structure sentences.

One of the best things about Hand Sign Station Lite is its usability. The app offers two options for playing animations: automatic and manual. Users can pause and play the automatic animations at any point, or use the slider bar for manual control. The app is supervised by Chihiro Tani, a sign language expert from the Edogawa Sign Language Interpreters Association.