Privacy Policy

Last updated: April 25, 2026

This privacy policy describes how Differing Reader (the "add-on", "we", "our") handles your information when you use it. By using the add-on, you agree to the practices described here.

What Differing Reader does

Differing Reader is a Google Workspace Editor Add-on for Google Docs. It computes a textual diff between two Google Docs you specify — the document you have open and another document you provide a URL for.

Data we process

When you click Compare in the add-on sidebar, the following data is processed:

• The textual content of the Google Doc you currently have open, accessed through the Google Docs API under your authorization.
• The textual content of the second Google Doc whose URL you provide, accessed through the same API.

Both documents' text is sent over HTTPS to our backend service, where a text diff is computed. The diff is returned to the add-on and shown in the sidebar.

What we do not do

• We do not store your document content. Text is held in memory only for the duration of a single comparison and discarded once the response is returned.
• We do not log your document content. Sensitive request parameters are filtered out of server logs by configuration.
• We do not share your document content with any third party for advertising, analytics, or any other purpose.
• We do not use your document content to train machine-learning models, our own or anyone else's.
• We do not access any Google data beyond the two documents you point the add-on at.

Third-party services

Differing Reader depends on the following third-party services for its operation:

• Google Docs API — used to read the text of the two documents under your OAuth authorization. Subject to Google's Privacy Policy.
• Heroku — hosts the diff backend. Heroku may have access to data passing through its infrastructure as part of standard cloud-hosting operations. Subject to Salesforce's Privacy Policy (Heroku is a Salesforce product).

Data retention

None. Document content is held in memory only for the duration of a single request and discarded immediately afterward. We do not maintain any database of user content.

Your rights

You can revoke Differing Reader's access to your Google account at any time by visiting https://myaccount.google.com/permissions and removing the Differing Reader add-on. After revocation, the add-on cannot read any of your documents.

Because we do not store your data, there is no stored data for us to delete on request.

Children's privacy

Differing Reader is not directed at children under 13 and we do not knowingly process data from them.

Changes to this policy

If this policy changes in any meaningful way, the updated version will be posted at this URL with a new "Last updated" date.

Contact

Questions about this policy or how your data is handled: admin@lininglink.com