Privacy Policy
Last updated: 10/31/2026
What we collect: Email, YouTube URLs you submit, usage data, and technical information
Why we collect it: To provide AI summaries, improve our service, and process payments
Who we share with: Supabase (data storage), Stripe (payments), OpenRouter (AI processing), PostHog & Sentry (analytics)
Your rights: Access, correct, delete your data, or withdraw consent anytime
Contact us: hello@sum.video for any privacy concerns
1. Data Controller
Company Name: Questly Kft.
Country: Hungary
Tax Number: 32757402-1-42
Registered Office: 1065 Budapest, Révay utca 6. Fsz. 7. ajtó
Email: hello@sum.video
Questly Kft. is the data controller responsible for processing your personal data in accordance with the General Data Protection Regulation (GDPR) and Hungarian data protection laws.
2. Types of Personal Data We Collect
Account Information
- Email address (for authentication and communication)
- Password (encrypted and stored securely)
- Account creation date and last login information
Service Usage Data
- YouTube video URLs submitted for processing
- Video metadata (title, duration, channel information)
- Generated summaries and transcripts
- Usage patterns and frequency
- Subscription status and payment information
Technical Data
- IP address and location data
- Browser type and version
- Device information and operating system
- Cookies and similar tracking technologies
3. Legal Basis for Processing
We process your personal data based on the following legal grounds:
- Contract Performance: To provide the summarization service you have subscribed to
- Legitimate Interest: To improve our service, prevent fraud, and ensure security
- Consent: For marketing communications and optional data processing
- Legal Obligation: To comply with applicable laws and regulations
4. How We Use Your Data
Service Provision
- Process YouTube videos and generate summaries
- Maintain your account and subscription
- Provide customer support
- Process payments through Stripe
Service Improvement
- Analyze usage patterns to improve AI accuracy
- Optimize service performance and reliability
- Develop new features and capabilities
- Conduct research and analytics (anonymized)
Communication
- Send service-related notifications
- Provide updates about your subscription
- Respond to your inquiries and support requests
- Send marketing communications (with consent)
5. Data Sharing and Third Parties
We may share your data with the following third parties:
Supabase (Database & Authentication)
We use Supabase for user authentication and data storage. Your account information and usage data are stored securely on Supabase's infrastructure.
Stripe (Payment Processing)
Payment information is processed by Stripe. We do not store credit card details on our servers.
OpenRouter (AI Processing)
Video transcripts are sent to OpenRouter for AI-powered summarization. We do not share personal information with OpenRouter beyond the content you submit.
YouTube API Services
sum.video uses YouTube API Services to retrieve metadata of public videos and to publish our own tutorial videos on our own YouTube channel. By using sum.video you agree to be bound by the YouTube Terms of Service. YouTube API Services are provided by Google; see the Google Privacy Policy.
We only access, use and store publicly available video information (such as title, channel name, duration and transcript) to provide summaries. We do not access your YouTube account or any private YouTube data, and we do not share YouTube data with third parties except the processors listed on this page.
You can ask us to delete any stored data at any time by deleting your account in the dashboard or by writing to the contact address in section 1; we delete it without undue delay. If you ever granted sum.video access to a Google account, you can revoke it on the Google security settings page.
PostHog (Analytics)
We use PostHog for user behavior analytics and event tracking to improve our service. PostHog may set cookies for analytics purposes.
Sentry (Error Tracking)
We use Sentry for error monitoring and performance tracking. Sentry may set cookies to track application performance and errors.
We do not sell, rent, or trade your personal data to third parties for marketing purposes.
行動應用程式與應用程式內購買
sum.video 的 iOS 與 Android 應用程式與網站共用相同的帳號和摘要，但有以下差異：
- 在應用程式中購買的 Pro 訂閱是由 Apple App Store 或 Google Play 收費，而非 Stripe。
- 我們使用 RevenueCat 來驗證商店收據並將訂閱狀態同步到你的帳號。
- 行動應用程式不包含 PostHog 分析或廣告追蹤 SDK。
- 你可以從行動應用程式的「帳號」或網站上的儀表板刪除你的帳號。這會移除你在 sum.video 上的個人帳號資料。
- 刪除帳號並不會取消有效的 App Store 或 Google Play 訂閱。請在 Apple ID 或 Google Play 訂閱設定中進行取消。
Claude 和 ChatGPT 連接器
如果你將 Claude 或 ChatGPT 連接到 sum.video，這些應用程式會透過連接器傳送 YouTube 影片網址和你的問題。我們會根據你現有的帳號、每週摘要配額和聊天配額來處理這些請求。我們不會接收你在 Claude 或 ChatGPT 中的其他對話內容。
6. Data Retention
Account Data
Retained for the duration of your account plus 3 years after account closure for legal and business purposes.
Usage Data
Video URLs and summaries are retained for 2 years to improve service quality and provide account history.
Payment Data
Retained for 7 years as required by Hungarian accounting and tax regulations.
Technical Data
Logs and technical data are retained for 1 year for security and performance monitoring.
您在 GDPR 下的權利
身為資料主體，您享有以下權利：
存取權
要求取得我們所持有關於您的所有個人資料複本。
更正權
更正不正確或不完整的個人資料。
刪除權
在特定情況下要求刪除您的個人資料。
限制處理權
限制我們處理您個人資料的方式。
資料可攜權
以結構化、機器可讀的格式接收您的資料。
異議權
基於合法利益反對資料處理。
您可以自行在行動 App（帳號 → 刪除帳號）或網站儀表板中刪除帳號。已分享的公開摘要將不會被移除。
若有其他隱私相關請求，請透過 hello@sum.video 與我們聯繫。我們會在 30 天內回覆。
8. Data Security
We implement appropriate technical and organizational measures to protect your data:
- Encryption of data in transit and at rest
- Regular security assessments and updates
- Access controls and authentication
- Secure data centers and infrastructure
- Employee training on data protection
- Incident response procedures
9. Cookies and Tracking
We use cookies and similar technologies for:
- Authentication and session management (Supabase)
- Remembering your preferences (theme, sidebar state)
- Analytics and user behavior tracking (PostHog)
- Error monitoring and performance tracking (Sentry)
- Security and fraud prevention
We also use browser localStorage for certain preferences like theme selection and video URL storage. Unlike cookies, localStorage data is not sent to our servers automatically.
You can control cookie settings through your browser preferences. Some features may not work properly if cookies are disabled. For detailed information about our cookie usage, please see our Cookie Policy.
10. International Data Transfers
Some of our service providers may be located outside the European Economic Area (EEA). We ensure adequate protection through:
- Standard Contractual Clauses (SCCs)
- Adequacy decisions by the European Commission
- Certification schemes and codes of conduct
- Binding corporate rules
11. Children's Privacy
Our service is not intended for children under 16. We do not knowingly collect personal data from children under 16. If we become aware that we have collected data from a child under 16, we will take steps to delete such information.
12. Changes to This Policy
We may update this privacy policy from time to time. Material changes will be communicated via email or service notification. We encourage you to review this policy periodically.
13. Supervisory Authority
You have the right to lodge a complaint with the Hungarian National Authority for Data Protection and Freedom of Information (NAIH):
14. Contact Information
For questions about this privacy policy or to exercise your rights, please contact us:
Data Protection Officer: Questly Kft.
Address: 1065 Budapest, Révay utca 6. Fsz. 7. ajtó
Email: hello@sum.video
Response Time: Within 30 days
This privacy policy is compliant with the General Data Protection Regulation (GDPR) and Hungarian data protection laws.