Support

WazaDeck is a study app for Judo techniques. If something isn't working or you have a question, we're happy to help.

Contact us

Email dev@samuraijj.com and we'll reply within a few days. Including your device model and iOS version helps us resolve issues faster.

Sign-in problems: WazaDeck uses Sign in with Apple. Make sure you're signed into iCloud on your device, then try again.
Progress didn't save: your streaks and practice stats sync to your account. Confirm you're signed in and connected to the internet; they'll sync on your next session.
Delete your account: open the app, go to the Profile tab, and tap Delete account. This removes your identity and all practice data immediately and is irreversible. You can also request deletion by email.

See our Privacy Policy for what data we collect and how to delete it.