Last Updated: December 18, 2025
Esti'mate is a browser extension that enhances Harvest's estimate functionality. This privacy policy explains what data we collect and how it is used.
The extension stores the following data locally in your browser only:
- Airtable workspace identifier
- Airtable API key
- Project management percentage preference
- Spellcheck server URL (if configured)
This data never leaves your browser except as described below.
If you configure and use the optional spellcheck feature:
What data is collected:
- Text content from estimate descriptions that you choose to spellcheck
- The content is sent to your configured spellcheck server
Where it goes:
- To the server URL you configure in the extension options
- This is typically a self-hosted server you control
- Default:
http://localhost:3000(your local machine only)
How it's used:
- The server processes the text using AI (OpenAI API) to check spelling and grammar
- Corrections are returned to the extension
- The text may be temporarily stored by the AI service (OpenAI) according to their privacy policy
You control this:
- The spellcheck feature is completely optional
- You must manually configure a server URL to enable it
- You decide which text to check (item by item)
- If no server URL is configured, no data is transmitted
If you configure Airtable integration:
What data is sent:
- Your Airtable API key
- Requests to fetch template data from your Airtable workspace
Where it goes:
- Directly to
api.airtable.com - This is Airtable's official API endpoint
How it's used:
- To fetch description templates you've configured in your Airtable workspace
- Subject to Airtable's Privacy Policy
- Purpose: Fetch description templates
- Privacy Policy: https://www.airtable.com/privacy
- Data Sent: API key, workspace queries
- Your Control: Only if you configure Airtable credentials
- Purpose: AI-powered spelling and grammar checking
- Privacy Policy: https://openai.com/policies/privacy-policy
- Data Sent: Text content you choose to spellcheck
- Your Control: Only if you configure and use spellcheck feature
This extension does not collect:
- Usage statistics
- Analytics data
- Personal information
- Browsing history
- Any telemetry
We do not:
- Sell your data
- Share your data with third parties (except services you explicitly configure)
- Track your usage
- Store data on our servers
You can:
- View all stored data in the extension's options page
- Delete all data by removing the extension
- Disable features that transmit data
- Use the extension without the optional features that transmit data
We will update this policy as needed. Check the "Last Updated" date at the top.
For questions about this privacy policy:
- GitHub: https://github.com/antistatique/esti-mate
- Website: https://antistatique.net
This extension is self-distributed for internal use. It is not published on public app stores. Updates are distributed via https://esti-mate.antistatique.io