Privacy
The short version: the calculators run in your browser, and what you type into them never reaches a server.
What happens to your numbers
Every calculation on this site runs in your browser, on your device. Package sizes, weights, product lists pasted into the batch calculator, and dispute figures are not uploaded, transmitted or stored by us. Reloading a page clears what you entered, apart from the saved results described next.
Saved results
The dimensional weight calculator offers a Save this result button. Saved results are stored in your browser's local storage, on your device only. They are never sent anywhere. You can remove them from the saved results list on that page, or clear your browser's site data to delete them all.
Links and email
Share links encode the numbers you entered in the link itself, so anyone you send the link to sees those numbers. Email you send us is read by the studio team and kept only as long as the conversation needs.
Accounts and tracking
There are no accounts and nothing to sign up for. This site uses Google Analytics to count visits and see which calculators get used. It collects usage data such as pages visited, approximate location, and device and browser type, and sets cookies to tell one visit from another. The figures are read in aggregate to decide what to improve. This site does not run advertising trackers and does not sell data.