Privacy Policy

Subscribed Since is a browser extension that allows you to view when you subscribed to YouTube channels. The extension uses the YouTube Data API to retrieve your subscription information and display it directly within the YouTube interface.

Subscribed Since does not operate external servers, does not collect analytics, and does not sell or share user data.

Subscribed Since accesses limited Google user data through the YouTube Data API using Google's OAuth authentication system.

The extension requests the following Google API scope:

• https://www.googleapis.com/auth/youtube.readonly

This is a read-only permission that allows the extension to retrieve your YouTube subscription data. The extension cannot create subscriptions, unsubscribe from channels, upload videos, post comments, modify playlists, or make changes to your YouTube or Google account.

• YouTube subscription data. Including your subscribed channels and subscription timestamps retrieved through the YouTube Data API.
• Basic authentication information. Used only to authenticate requests to Google's APIs.
• OAuth access tokens. Temporarily used by the browser's identity system to authenticate requests to Google services.

The extension does not access:

• Gmail data
• Google Drive files
• Google Contacts
• Google Calendar information
• Passwords
• Payment information
• Any non-YouTube Google account data

• Retrieving your YouTube subscriptions.
• Determining when you subscribed to a specific channel.
• Rendering subscription date badges directly on YouTube pages.
• Caching subscription data locally to improve performance and reduce unnecessary API requests.
• Maintaining your authenticated session within the extension.

Google user data is not used for:

• Advertising
• Analytics or telemetry
• Tracking or profiling
• Machine learning or AI training
• Marketing purposes
• Sale of personal data

Subscribed Since does not sell, rent, transfer, or share Google user data with third parties.

User data is not transmitted to external servers controlled by me.

The extension does not use:

• Third-party analytics services
• Advertising SDKs
• Tracking scripts
• External databases
• Remote telemetry systems

Google user data is transmitted only between your browser and Google's official OAuth and YouTube Data API services.

Subscription data is cached locally within your browser using chrome.storage.local or equivalent browser storage APIs.

Data is stored only on your device and is not synchronized to developer-controlled infrastructure.

Security practices include:

• Use of Google's official OAuth authentication flow
• HTTPS-secured communication with Google APIs
• Local-only storage architecture
• No external backend servers
• Minimal read-only permissions

Cached subscription data remains stored locally on your device until one of the following occurs:

• You sign out of the extension
• You clear extension storage manually
• You uninstall the extension
• Your browser extension storage is cleared

Signing out of the extension clears locally cached subscription data and discards cached authentication tokens where applicable.

Because Subscribed Since does not operate external servers or databases, I do not retain copies of user Google data after it is removed from the user's device.

You may also revoke the extension's Google account access at any time from your Google Account permissions page.

• identity — used to authenticate with Google OAuth through the browser Identity API.
• storage — used to cache subscription data locally on your device.
• alarms — used to periodically refresh subscription information.
• host access to youtube.com — used to display subscription date badges directly on YouTube pages.

Subscribed Since is not directed toward children under the age of 13 and does not knowingly collect personal information from children.

This privacy policy may be updated periodically to reflect changes to the extension, applicable laws, or Google API requirements. The “Last updated” date above will be revised when changes are made.

Subscribed Since is developed and maintained by Isaac Ibidun.

Questions about this privacy policy or the extension can be sent to contact@ibidun.dev.