Terapeak Helper – Privacy Policy
Last updated: September 28, 2026
Terapeak Helper is a Chrome extension that helps eBay sellers estimate fees, profit and sell-through. This policy explains what the extension does with information.
1. What the extension reads
The extension runs only on www.ebay.com pages that you open yourself: Seller Hub Product Research, search results and item pages. On those pages it reads numbers that are already shown to you, such as the average sold price, sell-through percentage, sold prices in search results, and the item price. It uses them only to calculate fees and profit inside your browser.
2. What the extension stores
It stores the settings you enter (category, shipping charged, shipping cost, item cost, promoted listing rate, target profit, sales tax rate and a custom fee rate) and a simple count of how many calculations you have run. These are saved with Chrome's storage (chrome.storage). If you are signed in to Chrome with sync turned on, Chrome may sync your settings between your own devices through your Google account.
3. What the extension does not do
- It does not collect, send or sell any personal information, browsing history, eBay account details, messages, orders or payment information.
- It does not send any data to the developer or to any third-party server.
- It does not use analytics, advertising or tracking code.
- It does not load eBay pages, click, bid, buy or make offers on your behalf.
- It does not run remote code.
4. Permissions
- storage: to remember your settings.
- Access to www.ebay.com: to show the profit panel and read the numbers on the eBay pages you open.
5. Removing your data
Uninstalling the extension removes its stored data from your browser. You can also clear it from chrome://extensions by removing the extension.
6. Children
The extension is not directed to children under 13.
7. Changes
If this policy changes, the new version will be posted at this address with a new date.
8. Trademarks
Terapeak Helper is an independent tool and is not affiliated with, endorsed by or sponsored by eBay Inc. "eBay" and "Terapeak" are trademarks of eBay Inc.
9. Contact
Questions: tmsimregisterhelp@gmail.com