Privacy Policy

Last updated: October 28, 2026

      Summary: Delta Exchange Fee Calculator is a 100% client-side browser extension. It does not collect, transmit, store on remote servers, or sell any personal or financial information. All calculations happen entirely within your local browser.
    

1. Single Purpose

The single purpose of the Delta Exchange Fee Calculator extension is to calculate and display exact historical entry fees from the official Delta Exchange API and estimate live closing fees for open positions on Delta Exchange.

2. Data Collection & Processing

We believe in absolute data privacy. The extension:

Does NOT collect any personally identifiable information (PII).
Does NOT track user activity, browsing history, or keystrokes.
Does NOT communicate with any developer-owned or third-party tracking servers.
Does NOT store sensitive user credentials or passwords.

3. Host Permissions (https://.delta.exchange/)

The extension requests host permissions strictly for https://*.delta.exchange/*. This permission is used exclusively to:

Inject the fee calculation columns ("Open Fee" and "Est. Close") directly into the Delta Exchange positions table (Risk View).
Query Delta Exchange's official authenticated REST API endpoint (/v2/fills) directly from your active session to fetch execution fees for your open contracts.

4. Local Storage & Data Retention

To avoid redundant API calls and optimize performance, the extension caches calculated fees locally on your machine using your browser's standard localStorage. This data never leaves your device and is automatically deleted when positions are closed.

5. Data Sharing & Third Parties

We do not sell, rent, monetize, or transfer your data to any third party under any circumstances.

6. Contact

If you have any questions about this privacy policy, you may contact the developer at: ajay14sharma@gmail.com.