Privacy Policy for Substack Note Scheduler

Last Updated: December 21, 2025

Introduction

Substack Note Scheduler ("the Extension") is a browser extension that automatically publishes scheduled notes to Substack. All note creation and scheduling happens on QuickViralNotes.xyz - this extension simply handles the automated publishing step. This privacy policy explains how the Extension handles your data.

Data Collection

This Extension is a publishing automation tool for the QuickViralNotes platform. The extension itself does not collect or store your note content or scheduling information - that all lives on QuickViralNotes.xyz. The extension's only job is to fetch scheduled notes from QuickViralNotes and publish them to Substack.

What Data Is Stored on QuickViralNotes (Not the Extension)

• Note Content: Created and stored on quickviralnotes.xyz
• Scheduling Information: Set on quickviralnotes.xyz
• Publishing Status: Tracked in QuickViralNotes database
• Account Association: Linked to your QuickViralNotes account

What the Extension Stores Locally

• Substack Domain: Your Substack publication URL (e.g., yourname.substack.com)
• Substack User Info: Your Substack user ID and email (read from Substack cookies for publishing)
• Temporary Alarms: Chrome scheduling alarms for upcoming publishes (auto-cleared after posting)
• Temporary Note Data: Copy of note content while publishing is in progress (cleared immediately after)

Important: The extension does not create, edit, or store notes. It only reads scheduled notes from QuickViralNotes and publishes them to Substack.

What We Don't Do

• No distribution: Your content is not distributed, sold, or shared with third parties
• No tracking: We don't collect browsing history, analytics, or tracking data
• No data sharing: Your notes go only where you intend them to go (Substack)
• No third-party access: No advertising networks, data brokers, or other services have access to your content

Data Storage

QuickViralNotes Cloud Storage

The Extension works as part of the QuickViralNotes platform. Your note content and scheduling information are stored in the QuickViralNotes database:

• Note Content: All your notes are created and stored on QuickViralNotes servers
• Scheduling Information: Planned publish dates and times are stored in the QuickViralNotes database
• Publishing Status: Whether each note has been published and when
• Account Data: Associated with your QuickViralNotes user account

Local Browser Storage

The Extension stores minimal data locally in your browser:

• Substack Domain: Your Substack publication domain (e.g., yourname.substack.com)
• Substack User Info: Your Substack user ID and email (extracted from Substack cookies for authentication)
• Temporary Scheduling Data: Chrome alarms and note content while publishing is active (automatically cleared after publishing)

Authentication & Security

The extension uses session-based authentication to ensure only you can access your notes:

• One-Time Setup: Click "Connect to QuickViralNotes" in the extension - your Substack domain is auto-filled from your account
• Session Duration: 365 days with automatic refresh on each use (effectively "always logged in" for active users)
• Security: The extension can ONLY access notes from YOUR authenticated QuickViralNotes account
• No API Keys: Uses secure browser session cookies - no tokens or keys to manage

How the Publishing Flow Works

1. You log in: Sign in to quickviralnotes.xyz (creates secure session)
2. You create notes: Create notes and set publish dates/times in your QuickViralNotes account
3. Extension authenticates: Uses your session to securely fetch ONLY your scheduled notes
4. Automated publishing: When scheduled time arrives, extension publishes to Substack
5. Status update: Extension marks note as published in your QuickViralNotes account

The extension's role: Securely fetches YOUR notes and publishes them to Substack. All content remains on QuickViralNotes servers.

Your content's path: QuickViralNotes database (authenticated) → Extension reads it → Published to Substack. Your content is never distributed to third parties.

Permissions Explained

The Extension requires certain permissions to function. Here's what each permission is used for:

Cookies

• Purpose: Required to authenticate with Substack when posting notes
• Scope: Only accesses cookies from substack.com domains
• Usage: Used to maintain your login session when posting to Substack
• Not Used For: Tracking, analytics, or any other purpose

Storage

• Purpose: Store your Substack domain preference and temporary scheduling alarms
• Scope: Only stores minimal configuration data locally
• Usage: Remember your Substack domain and manage Chrome alarms for scheduled publishing
• Not Used For: Storing note content (stored on QuickViralNotes servers instead)

Notifications

• Purpose: Display status updates about scheduled posts
• Scope: Only for Extension-related notifications
• Usage: Inform you when posts are successfully published or if errors occur
• Not Used For: Marketing, advertising, or unrelated notifications

Alarms

• Purpose: Schedule future posts for automatic publishing
• Scope: Only used to trigger posting at user-specified times
• Usage: Enables the scheduling functionality so posts publish at the right time
• Not Used For: Background tracking or any activity unrelated to scheduled posts

Third-Party Services

The Extension interacts with the following services:

Substack.com

• Purpose: Post notes to your Substack account
• Data Sent: Note content, authentication cookies
• Privacy Policy: Substack's Privacy Policy

quickviralnotes.xyz

• Purpose: Stores your notes in the QuickViralNotes database
• What Extension Does: Queries the database for scheduled notes (reads directly from your account)
• What Extension Sends Back: Publishing confirmation and status updates only
• Required: You must have a QuickViralNotes account - the extension cannot function standalone

Important: Your content stays in the QuickViralNotes database. The extension reads it directly when needed for publishing. QuickViralNotes does not distribute your content to any third parties.

Where your content goes: Only to Substack when you schedule it to be published. Your notes are not shared with advertising networks, analytics services, or any other third parties.

User Control

Manage Your Data

• View and Edit Notes: Log into your QuickViralNotes account at quickviralnotes.xyz
• Delete Notes: Remove individual notes through your QuickViralNotes account
• Remove Local Settings: Uninstall the extension to clear local browser storage (Substack domain preference)

Data Retention

Your notes and scheduling data are retained in the QuickViralNotes database as long as your account is active. Published notes remain in your history. You can delete notes individually at any time through your QuickViralNotes account.

Security

• Data Storage: Your notes are stored securely in the QuickViralNotes database; only minimal settings stored locally
• Encryption: All communication with Substack and QuickViralNotes uses HTTPS encryption
• No Third-Party Sharing: Data is only transmitted between QuickViralNotes (our service) and Substack (your publishing destination)
• Compliance: Extension follows Chrome's security guidelines and best practices
• Cookie Security: Only reads Substack cookies needed for authentication; never accesses cookies from other websites

Changes to This Policy

We may update this privacy policy from time to time to reflect changes in the Extension's functionality or legal requirements. Changes will be posted on this page with an updated "Last Updated" date.

Legal Compliance

This Extension complies with:

• Chrome Web Store Developer Program Policies
• General Data Protection Regulation (GDPR) principles
• California Consumer Privacy Act (CCPA) principles

Your Consent

By using the Extension, you consent to this privacy policy.