Support
We're happy to help.
📧 Contact us
Bug reports, feature requests, billing, or account/data-deletion requests — email us directly and we'll get back to you.
zeronihongo.support@gmail.com🗑️ Delete your account
Email us from your account's sign-in address (or include your account details) with the subject "Delete my account" and we'll remove your data.
Request deletionFrequently asked questions
Do I need an account to use ZeroNihongo?
Yes. Sign-in is required so your lesson progress, review schedule, and settings sync securely and survive an app reinstall or a new device.
Is ZeroNihongo free?
ZeroNihongo is currently in final testing ahead of its Google Play launch. Pricing details will be shared closer to launch.
Why does the AI Tutor sometimes say it's unavailable?
The AI features depend on a network connection to our AI gateway. If you see this message, check your connection and try again — it should resolve within a second or two.
How do I switch between JLPT levels?
Open Settings from the app and use the level switcher to move between the Foundation Course, N5, and N4 content once unlocked.
What is Adaptive Immersion?
It's a setting that controls how much English support you see across lessons, review, and quizzes — from fully bilingual to Japanese-only — so the app can grow with your ability.
How do I delete my account and data?
Email zeronihongo.support@gmail.com with the subject "Delete my account" and we'll process the request. See our Privacy Policy for details on what data is stored.