SignDict

the first

Japanese

and

American

Sign Language translation dictionary App

Introducing the SignDict

Study Sign Language when you’re Offline

With SignDict, you can study American or Japanese Sign Language anytime, anywhere, without needing an internet connection. Our offline mode ensures that you have access to thousands of signs languages, helping you learn and practice at your convenience, even without cellular data or Wi-Fi.

Designs

Now with Furigana

We’ve redesigned the dictionary cards to make reading Japanese more intuitive. Kanji and Katakana is now paired with furigana, so you can instantly understand both the meaning and the pronunciation.

Explore what’s new for SignDict

  • Liquid Glass

    A NEW LOOK FOR SIGNDICT

    Every screen has been redesigned with the new Liquid Glass interface.

  • Improved Navigation

    MENU VIEW

    The dictionary menu has been redesigned with dedicated sign language SF Symbols for a cleaner experience.

  • iPadOS

    REDESIGNED INTERFACE

    A new two-column layout and improved sidebar provide a more desktop-class experience.

  • macOS

    ADD SUPPORTED

    Improved the interface for macOS based on the redesigned iPadOS experience.

  • VisionOS

    ADD SUPPORTED

    Improved the interface for visionOS based on the redesigned iPadOS experience.

Built with SwiftUI

Made once.

Built everywhere.

Powered by SwiftUI for a seamless experience across the Apple ecosystem.

Sign Language

Signdict Content Updates

The numbers show how many signs SignDict has added new sign languages or improved those translations were updated in the SignDict app.

Always Improving.

Every update is designed to make SignDict more new, improve, and more accurate, and more helpful for all of the community.

COMING SOON

More features are on the way, including expanded to Days, Weeks Years, Numbers, Compass, and Maps.

Your Feedback Matters.

Help improve SignDict by reporting corrections, requesting new sign language entries, and sharing your ideas.

SignDict Reviewers

Tap Here To Watch

“A GOOD FRIEND OF MINE from japan WHO'S DEAF SUGGESTED an IDEA TO me about COMBINING TWO LANGUAGES INTO ONE PLATFORM in order to HELP HIM AND EVERYONE TO LEARN both SEAMLESSLY and WITHOUT NEEDING TO TEACH EACH OTHER. HIS IDEA INSPIRED ME TO CREATE A SOLUTION THAT CAN HELP EVERYONE LEARN EFFORTLESSLY.”

— Antonio Chavez (Founder & iOS Developer)

Storage

Small. Smaller.

One of the biggest improvements isn’t something you’ll immediately see, it’s the app’s size. By moving entirely to SwiftUI and removing our legacy UIKit implementation, we’ve reduced SignDict from nearly 2 GB to just 700 MB. That means faster downloads, smaller updates, and more room on your device.

Privacy

Learn more

SignDict

For Android

Designed for Android. Coming this year.

MEET THE SIGNDICT TEAMS

  • Antonio Chavez

    IOS ENGINEER \ FOUNDER

  • JOSHUA SMITH

    BUG INVESTIGATOR

  • CASSADY MEAD

    ANDROID ENGINEER

  • SHINJI SAYAMA

    DEAF JAPANESE