Privacy Policy – BD Japanese

Effective Date: 20-11-2025
Developer: Lumion Dev
Email: [email protected]

BDJapanese (“we”, “our”, “us”) operates as a commercial app/web service for learning Japanese. This Privacy Policy explains how we collect, use, disclose, and protect your personal information when you use our Service.

By using our Service, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

We may collect the following types of information:

A. Personal Information

Used for account creation, authentication, and communication:

Name
Email address
Profile information (optional)

B. Authentication Data

Email + Password
Passwords are securely stored using industry-standard hashing and never stored in plain text.

C. Device & Technical Information

Automatically collected through WebView, Firebase, Google:

Device model
Operating system version
IP address
App version
Crash logs
Usage statistics

D. Advertising & Analytics Data

Collected by third-party SDKs:

Google AdMob
Google Play Services
Firebase Analytics
OneSignal

This may include:

Advertising ID
Approximate location (non-precise)
In-app behavior (screens viewed, session duration)

E. Cookies & WebView Tracking

Our WebView and third-party libraries may use:

Cookies
Local storage
Tracking technologies
These help improve functionality, analytics, and ad performance.

2. How We Use Your Information

We use the collected data for:

✔ Account creation & login
✔ Providing and improving app features
✔ Analytics, performance monitoring
✔ Personalized content and ad serving (AdMob)
✔ Preventing fraud and abuse
✔ Responding to user requests
✔ Customer support

We do not sell your personal data to third parties.

3. Third-Party Service Providers

The app uses third-party services that may collect information used to identify you:

Google Play Services
Firebase Analytics
AdMob
Crashlytics
OneSignal

These providers have access only to the data needed to perform their services and are obligated not to use it for any other purpose.

We may share your data only in the following situations:

With third-party service providers (listed above)
To comply with legal obligations
To protect against fraud, security threats, or misuse
With your explicit consent

We never sell or rent personal information.

5. Data Retention

We retain your personal information only as long as necessary to:

Provide services
Comply with legal obligations
Resolve disputes

When data is no longer required, it is securely deleted.

6. Data Security

We use industry-standard measures to protect your data, including:

HTTPS (encrypted in transit)
Secure servers
Password hashing
Limited access controls

However, no transmission method over the Internet is 100% secure.

7. Children’s Privacy

Our service is not intended for children under 13.
We do not knowingly collect data from children under 13.
If you believe your child has provided personal data, please contact us so we can delete it.

8. Account Deletion (Required by Google Play)

Users can delete their BDJapanese account and all personal data at any time.

To request deletion:
Email us at [email protected] using the same registered email.

We will:

Verify your identity
Delete your account and all associated data
Complete the process within 7 days

Some legally required records (such as payment or transaction logs) may be retained as allowed by law.

For more details:
👉 https://bdjapanese.com/delete-account.html

9. User Rights

Depending on your region, you may have rights to:

Access your personal data
Correct your data
Delete your data
Export your data
Withdraw consent

To exercise these rights, contact: [email protected]

10. Links to Other Sites

Our Service may contain links to external websites.
We are not responsible for the privacy practices of third-party sites.

11. Changes to This Privacy Policy

We may update this policy occasionally.
Updates will be posted on this page with a new “Effective Date”.

12. Contact Us

If you have questions or concerns about this Privacy Policy, contact:

📧 [email protected]
🌐 https://bdjapanese.com