Privacy Policy
Last updated: April 12, 2026
1. Overview
N Graph is designed with privacy as a core principle. All chart rendering and data processing happens entirely within your browser. Your Notion data never leaves your device.
2. Data We Collect
| Data | When | Purpose | Stored Where |
|---|---|---|---|
| Email address | Pro sign-up only | Authentication & license management | Supabase (encrypted) |
| Subscription status | Pro sign-up only | License verification | Stripe & Supabase |
| Language preference | Always | UI localization | Browser localStorage |
| Chart settings | Always | Remember your preferences | Browser localStorage |
3. Data We Do NOT Collect
- Notion page content, database content, or any user data from Notion
- Browsing history or activity outside of Notion
- Personal information (name, address, phone number)
- Analytics or tracking data
- Cookies for advertising purposes
4. How Your Notion Data Is Handled
N Graph reads Notion table data only from the currently displayed page in your browser, using a content script. This data is:
- Processed entirely in your browser (client-side)
- Used solely to render charts on screen
- Never transmitted to any server, API, or third party
- Never stored, cached, or logged
- Discarded when you close the tab or navigate away
5. Third-Party Services
N Graph uses the following third-party services for Pro features only:
Supabase (Authentication)
- Stores your email address and authentication tokens
- Used for Magic Link sign-in
- Privacy policy: supabase.com/privacy
Stripe (Payment Processing)
- Processes subscription payments
- We do not store your credit card information
- Privacy policy: stripe.com/privacy
6. Permissions
N Graph requires the following Chrome permissions:
| Permission | Reason |
|---|---|
| Access to notion.so | Read table data from the active Notion page to generate charts |
| Storage | Save your language and chart preferences locally |
7. Data Retention
- Free users: No data is collected or retained.
- Pro users: Email and subscription data are retained while your account is active. Upon cancellation, data is deleted within 30 days.
- Local data: Browser localStorage data can be cleared by you at any time via browser settings.
8. Your Rights
You have the right to:
- Request access to your stored data
- Request deletion of your account and all associated data
- Export your data
- Withdraw consent at any time by uninstalling the extension
To exercise these rights, contact notiongraph123@gmail.com.
9. Children's Privacy
N Graph is not intended for children under 13. We do not knowingly collect personal information from children.
10. Changes to This Policy
We may update this policy from time to time. Changes will be posted on this page with an updated revision date. Continued use of N Graph after changes constitutes acceptance.
11. Contact
For privacy-related questions or data requests, contact us at notiongraph123@gmail.com.