Privacy Policy

Last updated: April 2026

Overview

InkMark ("we", "our", "us") is committed to protecting your privacy. This policy explains what data we collect and how we use it.

Data We Collect

License Activation

When you activate a Pro license, we store your license key, email address, and a machine identifier (hardware fingerprint). This data is used solely to manage license activations.

Download Tracking

When you download InkMark, we record the version downloaded, approximate country (from Cloudflare headers), and browser user agent. No personally identifiable information is collected.

Anonymous Telemetry (Optional)

InkMark may collect anonymous usage statistics such as which features are used and software version. This data contains no personal information and is used to improve the product. Telemetry can be disabled in settings.

What We Do NOT Collect

• We do not read, store, or transmit your OneNote content
• We do not use cookies for tracking
• We do not share data with third parties for advertising

Local Processing

All Markdown rendering — syntax highlighting, math formulas, formatting — is performed entirely on your local machine. No note content is sent to our servers. The only exception is diagram rendering (Mermaid, PlantUML, Graphviz), which uses the third-party service Kroki.io. Only diagram source code is transmitted, not your notes.

Data Storage

Data is stored on Cloudflare's infrastructure (D1 database) with encryption at rest. We retain activation and telemetry data for as long as your account is active.

Your Rights

You may request deletion of your data at any time by contacting support@inkmark.com.

Changes

We may update this policy from time to time. Changes will be posted on this page.

Contact

For privacy-related inquiries, email support@inkmark.com.