Your calculator inputs stay in your browser.

The calculator processes its selections locally in the browser and does not require an account. The current site does not use analytics, advertising or tracking scripts.

Local storage

The calculator stores the user's theme preference on the device using browser local storage.

Contact

Questions about privacy can be sent to info.bottleneckcalculator@gmail.com.

Future services

If analytics, advertising or cookie-based services are added later, this policy should be updated and any legally required consent controls should be implemented.