Privacy Policy

Last Updated: February 17, 2026

ThreadMemo ("T-Memo", "the App") is designed with an offline-first architecture, storing bookmarked content locally on your device in SQLite without server transmission unless cloud sync is enabled.

1. Information We Collect

Locally Stored Data

The following data is stored locally on your device and is not transmitted to our servers unless you explicitly enable cloud sync:

• Bookmarked URLs, titles, and annotations
• Tags, categories, and organizational preferences
• App settings and preferences

Usage Data

We collect non-personally identifiable data to improve the app:

• App usage patterns and feature interactions
• Device type and operating system version
• Crash reports and performance data

Advertising Data

For the free version with ads, we may collect:

• Advertising identifiers (IDFA on iOS, AAID on Android)
• Device information and app usage patterns
• Approximate location data at country/region level

On iOS 14.5+, we request your permission via Apple's App Tracking Transparency (ATT) framework before accessing the IDFA. Premium subscribers do not see ads and this data is not collected.

2. How We Use Your Information

We use collected information to:

• Provide and maintain the service
• Improve app performance and user experience
• Manage subscriptions and in-app purchases
• Send service-related notifications

3. Third-Party Services

• Google Mobile Ads (AdMob): For serving advertisements in the free version. AdMob may collect device identifiers, usage data, and approximate location.
• Firebase: For analytics, crash reporting, and optional cloud sync.
• RevenueCat: For subscription management.

4. Data Storage and Security

Your bookmarks and notes are primarily stored locally on your device. If you enable cloud sync, your data is stored securely using Firebase with industry-standard encryption. We implement appropriate technical and organizational measures to protect against unauthorized access.

5. Data Sharing

We do not sell your personal information. Data sharing occurs only with:

• Your explicit consent
• Legal compliance requirements
• Protection of user rights and safety

6. Your Rights

You may:

• Access your personal data
• Request account and data deletion
• Opt out of non-essential data collection
• Withdraw personalized advertising consent via Privacy Settings

If you are located in the European Economic Area (EEA), United Kingdom, or Switzerland, you have additional rights under the GDPR.

7. Children's Privacy

T-Memo is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.

8. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date.

9. Contact Us

If you have questions about this Privacy Policy, please contact us at: nicholasliu082@gmail.com