Learn ASL with your webcam

Hold up a letter and Mochi checks your handshape. Practice daily to keep your streak going. Your video never leaves this device.

Sticker book

Tap a letter to practice it. Each letter earns coins the first time!

Fingerspell words letter by letter to earn coins!

Learn whole ASL words with movement, like HELLO and THANK YOU.

Practice letters and words you've already learned.

Spend your coins on accessories for Mochi!

Sign in and practice daily to climb the ranks!

Record yourself signing so the game works for more people. It takes about 10 minutes.

Pick what to record

Letters Hold each letter still Words Signs with movement, like HELLO
Record some takes

Type your first name, choose a letter or word, and press Record a take.
Download your CSV

Press Download CSV on the recorder page when you're done.
Upload it to our form

Attach the file and we'll add it to the next training run.
Open the upload form

The CSV only holds the dots on your fingers and your first name. No video or photos are saved or sent.