Privacy Policy

1. Who We Are

This Privacy Policy describes how Namu ("we," "us," or "our") handles information when you use the Namu iOS application. If you have questions, contact us at brathse@gmail.com.

2. Information We Collect

We collect minimal information necessary to provide the Service. Here is exactly what we collect and why:

Information we do NOT collect:

• Your AI conversation messages with 나무 (processed entirely on-device)
• Your voice recordings or speech data from Voice Call (processed entirely on-device)
• Your name, email address, or any account credentials (no account required)
• Location data
• Contacts or other device data

Information we may collect:

• App usage analytics (anonymous): Aggregate, non-identifiable data such as which features are used and how often, used to improve the app. This data cannot be linked back to you individually.
• Crash reports: If the app crashes, an anonymous crash report may be sent to help us fix bugs. These reports do not contain personal data or conversation content.
• Purchase information: Apple handles all subscription transactions. We receive only confirmation that a subscription is active — never your payment details, Apple ID, or billing information.

3. How We Use Information

The limited information we collect is used exclusively to:

• Deliver and improve the Daily Word feature
• Diagnose and fix technical issues (crash reports)
• Understand aggregate usage patterns to prioritize new features
• Verify active subscription status to unlock Pro features

We do not use your information for advertising, profiling, or any purpose beyond operating and improving Namu.

4. On-Device AI and Apple Intelligence

The AI tutor (나무), AI Conversation, and Voice Call features are powered by Apple Intelligence running locally on your device. This means:

• All AI inference happens on your iPhone's Neural Engine — not on our servers
• No conversation text, context, or history is transmitted over the internet
• Your learning sessions remain completely private even if you are offline
• Apple's privacy practices for Apple Intelligence apply to the underlying model framework; see apple.com/privacy

5. Data Sharing and Third Parties

We do not sell, rent, or trade your personal information. We do not share your data with advertisers or data brokers.

The limited third parties involved in operating Namu are:

• Apple Inc.: Manages App Store distribution, in-app purchases, and the Apple Intelligence framework. Governed by Apple's Privacy Policy.
• Crash reporting service (if applicable): Anonymous, aggregated crash data only — no personal or conversation data.

We may disclose information if required by law or legal process, but we will notify you where legally permitted.

6. Data Retention

Because your AI conversations and voice sessions are processed entirely on-device, we have no server-side copy to delete. This data lives only on your iPhone and is subject to your device's own storage and backup settings.

Anonymous analytics and crash reports are retained for up to 12 months and then deleted. Subscription status data is retained for the duration of your subscription and up to 90 days thereafter.

7. Children's Privacy

Namu is not directed to children under 9. We do not knowingly collect personal information from children under 9. If you believe a child under 9 has used the app and provided personal information, please contact us at brathse@namu.app and we will promptly address the situation.

8. Your Rights

Depending on your location, you may have rights regarding your personal data, including the right to access, correct, or delete it. Because we collect very little personal data, most of these rights apply primarily to anonymous analytics data.

To exercise your rights or ask questions about your data, contact us at brathse@namu.app. We will respond within 30 days.

9. Security

We implement appropriate technical and organizational measures to protect the limited data we do handle. Because the core features of Namu run on-device, the primary security of your learning data is provided by your iPhone's built-in security (Face ID, Passcode, device encryption).

10. Changes to This Policy

We may update this Privacy Policy to reflect changes to our practices or for legal reasons. We will update the "Last updated" date at the top and, for material changes, notify you through the app. Continued use of Namu after changes constitutes acceptance of the updated policy.

11. Contact Us

Questions or concerns about your privacy? We'd love to hear from you:

• Email: brathse@gmail.com