Chuck privacy policy

Last updated: 2026-10-13

Chuck is made by CRTC LLC ("we").

The short version

Chuck works entirely on your computer. It does not collect, send or sell any information about you or what you buy and sell.

All in %LOCALAPPDATA%\Chuck\ (when installed from the Microsoft Store, Windows keeps it in the app's private folder):

settings.json: your minimum profit, minimum return, tax set-aside and last marketplace.
history.json: the calculations you made (item name if you typed one, prices, fees, results).
feetables.json: fee tables you edited or created.
usage.json: how many calculations you made today in the free version.
error.log: only if something goes wrong, a technical description of the error.

These files stay on your PC. Uninstalling Chuck removes them. You can clear your history inside the app at any time.

When you export your history, Chuck writes a CSV file only where you choose. It sends it nowhere.

Chuck itself sends nothing over the network. To check whether you own Chuck Pro, it asks Windows, and Windows checks with the

Microsoft Store. Purchases of Chuck Pro are handled entirely by the Microsoft Store under Microsoft's privacy statement. We receive

no payment details. The "Try Appraze" link opens the Microsoft Store page for another CRTC LLC app; nothing about you is passed with it.

None. Chuck has no analytics, advertising or tracking code. Windows may send crash reports to Microsoft under your Windows privacy

settings; we don't add anything to them.

Chuck is a business tool and isn't directed at children.

If this policy changes, the new version will be posted at this address with a new date.

Questions about this policy: [email protected]