Project Unknown ('Company') values your privacy and complies with applicable data protection laws. 1. Information We Collect - Sign-up: Email address, nickname, and profile picture provided via social login (Google, etc.). - Service Use: Study progress, created notes, and quiz data. - Payment: Payment information processed by Paddle (the Company does not store your payment credentials directly). 2. Purpose of Collection & Use - User identification and service provision. - Processing payments and refunds for paid services (e.g., Stik Pro). - Providing study analytics, statistics, and customer support. 3. Sharing & Third-Party Processors We share data with the following processors to deliver our services: - Supabase, Inc.: Database hosting and authentication. - Paddle.com Market Ltd.: Payment processing and subscription management. - OpenAI, Inc. / Google LLC: Analyzing uploaded images and text for quiz generation (data transmitted is not used for AI model training). 4. Retention and Destruction When an account is deleted, its account information, uploaded materials, and study data are removed from the Company's service database and Storage. Payment and transaction records processed and retained by Paddle remain subject to Paddle's privacy and retention policies. 5. Contact Information For privacy inquiries, please contact us at help.projectunknown.team@gmail.com. Effective Date: This policy shall take effect on July 13, 2026.