This page provides official instructions for requesting the permanent deletion of your NihongoDoya account and associated application data, developed and provided by Doya Labs ("we", "us", "our").
Users of the NihongoDoya app can request the deletion of their account and associated data at any time without needing to have the app currently installed.
1. Overview & Scope
If you have registered an account on the NihongoDoya mobile app (developed by Doya Labs), you have the right to request the complete deletion of your account and any associated app data stored in our cloud systems.
You do not need to sign in to this website or keep the app installed to submit an account deletion request. Follow the straightforward instructions below to initiate the process.
2. How to Request Account Deletion
To request deletion of your NihongoDoya account and associated data, please send an email to our support team with the following details:
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Contact Email: support@nihongodoya.com
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Subject Line:
Account Deletion Request -
Sender Address: Please send the request from the same email address associated with your NihongoDoya account, where applicable.
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Identity Verification: To protect your privacy and prevent unauthorized deletion, your identity and account ownership may need to be verified before deletion is executed.
3. Data That May Be Deleted
Upon receipt and verification of a valid account deletion request, the following data associated with your NihongoDoya account will be deleted, where applicable:
- Account & Profile Record: Your primary NihongoDoya user profile, account identifiers, and profile details.
- Authentication Information: Authentication-linked credentials, account records, and login identifiers.
- Cloud Storage Data: User-specific data stored for the account in Firebase / Firestore, such as learning progress, study bookmarks, saved items, quiz/test scores, and user preferences, where applicable.
- Other Associated App Data: Any other user-specific app data linked to that account.
Note: Data stored locally on your device cache can also be cleared independently by uninstalling the application or clearing the application storage via your device settings.
4. Delete Specific Data Without Deleting Your Account
At this time, requests to delete account-linked data are handled together with account deletion unless otherwise required by law.
If you wish to remove specific account records stored in the cloud, please submit an account deletion request using the email instructions above. For managing locally cached data on your mobile device without deleting your account, you may use your device's application management settings to clear the app cache.
5. Data Retention & Legal Exceptions
When an account is deleted, personal account records and linked user data are removed from active databases. However, some information may be retained only when:
- Legally required by applicable laws, tax regulations, or statutory compliance obligations.
- Necessary for fraud detection, security prevention, or protecting the integrity of our systems.
- Required for legitimate record-keeping or resolving active legal disputes.
Any retained records are strictly restricted and kept only for the duration required by applicable legal mandates.
6. Expected Processing Timeline
We aim to process valid account deletion requests within a reasonable period after verification.
Once your account ownership has been confirmed, our support team will permanently delete your active account and associated cloud records, and confirm completion via reply email.
7. Contact Support
If you have questions about this deletion policy, your personal data, or the status of an ongoing request, please contact our support team:
Doya Labs — NihongoDoya Support
Email: support@nihongodoya.com
Website Support: nihongodoya.com/contact
Privacy Policy: nihongodoya.com/privacy
Terms of Service: nihongodoya.com/terms