Last updated: 2026-08-04
This privacy policy explains what data the “EU Tariff & Landed Cost Calculator” Chrome extension (the “extension”) collects, stores, and shares, and what it does not.
When you use the calculator, the extension stores the following on your own device, using the browser’s built-in chrome.storage.local API:
Up to your 20 most recent calculations are kept as local history. This data is never transmitted anywhere. It stays on your device and is only read by the extension’s own popup to display your history.
To enforce the free tier’s daily calculation limit, the extension stores a count of how many calculations you’ve run today and the current date, also in chrome.storage.local. This never leaves your device.
If you purchase Pro and choose to activate it by entering a License Key in the extension:
isPro: true) and the License Key locally in chrome.storage.local, so you don’t need to re-enter it later.No other information (name, email, payment details) is sent as part of this check — only the License Key string you typed in.
The extension does not:
Purchases are handled entirely by Creem, our payment processor. When you choose to upgrade to Pro, the extension opens Creem’s own checkout page in a new browser tab — you complete the purchase directly on Creem’s site. The extension itself never sees or handles your payment details (card number, billing address, email, etc.); that information goes directly to Creem, not to us.
Please refer to Creem’s own privacy policy for how they handle your payment and checkout information: [Creem Privacy Policy — link to be added].
We use a Cloudflare Worker as a lightweight relay solely to check whether a License Key you enter is valid with Creem. Our Worker code does not store or log your data — it simply forwards the key for a validity check and returns the result.
Cloudflare is our infrastructure provider, and like any network operator, its edge network may record standard connection metadata (such as IP address) while handling the request, as part of Cloudflare’s own security and abuse-prevention systems. This logging happens at Cloudflare’s infrastructure level as a normal part of operating their network — it is not something our Worker code actively reads, logs, or stores. For details on how Cloudflare handles this, see Cloudflare’s own privacy policy.
chrome.storage.local.chrome.storage.local on your device — nothing is retained after uninstall.We do not operate any server-side database of user data; everything described in Section 1.1 and 1.2 lives only in your browser’s local storage.
This extension is an estimation tool. The duty, VAT, and total landed cost figures it produces are for reference and planning purposes only — they do not constitute official customs or tax advice, and are not a guarantee of accuracy. Always verify against official sources or consult a qualified customs/tax professional before making business decisions.
If you have questions about this privacy policy or how your data is handled, contact us at:
lidingyao44@gmail.com