Privacy Policy

Last updated: 2026-05-10

ModuMind (“we”, “us”) respects your privacy. This Privacy Policy explains what information we collect, how we use it, and the choices you have. It applies to the ModuMind web service and any related properties operated by us.

1. Information We Collect

a. Account information

  • Email address, display name, password (hashed)
  • If you sign in with a third party (e.g., Google): the email, name, and avatar provided by that provider

b. Billing information

  • Subscription ID, plan, billing country, receipt metadata, and payment status received from Polar.sh (our Merchant of Record).
  • We never receive or store your full payment card number. Card data is handled exclusively by Polar.sh and its PCI-compliant processors.

c. Automatically collected

  • IP address, user agent, cookies, log records, error reports, basic usage telemetry

2. Mind Map Data

Your mind maps are not stored on our serversby default. They live in your browser’s IndexedDB and, if you opt in, sync to a cloud drive of your choice (e.g., Google Drive). The only exception is when you explicitly generate a public share link — in that case the snapshot needed to render the link is hosted on our infrastructure (Supabase Storage).

3. How We Use Information

  • To create and authenticate your account and prevent fraud or abuse
  • To process subscriptions, payments, and refunds
  • To operate, maintain, and improve the Service
  • To respond to support requests and send essential service notices
  • To comply with legal obligations

4. Retention

CategoryRetention
Account informationUntil you delete your account
Billing recordsUp to 5 years (legal accounting requirements)
Access logs3 months
Error reportsUp to 12 months, then anonymized

5. Sub-processors

We rely on the following sub-processors to operate the Service. By using ModuMind you consent to this processing.

Sub-processorPurposeRegion
Supabase, Inc.Authentication, database, file storageSeoul (ap-northeast-2)
Polar.shPayment processing (Merchant of Record)United States / Global
Vercel, Inc.Web hosting and CDNGlobal edge
Google LLCGoogle Drive sync (only if you opt in via OAuth)Global

We do not sell your personal information. We do not share it with third parties for marketing purposes.

6. International Transfers

Some sub-processors operate outside your country of residence. Where required, we rely on Standard Contractual Clauses or other lawful transfer mechanisms.

7. Your Rights

Depending on your jurisdiction, you may have the right to:

  • Access, correct, or delete your personal data
  • Object to or restrict processing
  • Receive a copy of your data in a portable format
  • Withdraw consent (where processing is based on consent)

To exercise these rights, contact us at mailside@gmail.com. You can also delete your account at any time from Settings.

8. Cookies & Local Storage

We use cookies and browser local storage to keep you signed in and to remember your language and theme preferences. You can disable cookies in your browser, but parts of the Service may not work as expected.

9. Security

  • Passwords are stored using one-way hashing
  • All traffic is encrypted via HTTPS/TLS
  • Access controls follow the principle of least privilege
  • Regular security review and dependency updates

10. Children

The Service is not directed to children under 13 (or the equivalent minimum age in your country). If we become aware that a child has provided us personal data, we will delete it promptly.

11. Data Protection Contact

Privacy Officer: Jay Kim
Email: mailside@gmail.com

12. Changes to This Policy

We may update this Policy from time to time. Material changes will be announced via email or in-product notice at least 14 days in advance.