Nhẩm Nhanh Support

Forgot password

Open Account → Forgot password? and use your saved email to receive a password reset link. If you cannot use your email, choose No email, or can't access it? and send the username you remember and a phone number for manual recovery. Do not send your old password.

Games awaiting sync

Keep the app and its local storage. When you're online, open Account and choose Sync. Results marked “Awaiting sync” retry automatically. Challenge and offline runs are saved separately in your practice records.

Report a bug, give feedback or request your data

You can use the direct contact form above for bugs, data requests and appeals about player restrictions. Keep your request code to view our reply here. An optional email is used only to handle your request.

Open the game and choose the yellow Give us your two cents! card on the home or results screen. Include your device, the time, what happened and a username if an account check is needed. Feedback is private to the game operator, not publicly posted. Guests can send feedback too.

Apple Pencil

On iPad, select Input method → Apple Pencil on the home screen and wait for recognition setup. Write your answer, then briefly lift your Pencil to submit. Use Clear ink to rewrite or Use number pad during a game. Initial model setup needs an internet connection.

Language

The game starts in Vietnamese on both web and app. To use English, open Account → Language → English. Your choice is remembered on this device and synced to your account when signed in. Choose Tiếng Việt to switch back.

Delete account

Open Account → Delete account, read the details, enter your password and confirm. This permanently deletes your account from the server. If you cannot access your account, use recovery first.

Open game

Privacy and data processing · Tiếng Việt