Privacy Policy

Who controls the data

HydrateWise is an independent service operated by Benjamin Dickman in the United Kingdom. Privacy questions, access requests and corrections can be submitted through benjamindickman.com.

Calculator and planner data

Calculator inputs are processed transiently to return an estimate and are not deliberately stored by the server. Planner history, favourites, theme and privacy choices are stored locally on your device. We do not operate an account database.

Optional analytics

Google Analytics is disabled until you allow it. With consent, Google may process device, page, approximate location and usage information. The lawful basis is your consent, which you can withdraw immediately on the Privacy preferences page. Hydration inputs and local history are not deliberately sent to analytics.

Analytics may set cookies beginning _ga, commonly retained for up to two years. Withdrawal disables collection and removes accessible HydrateWise analytics cookies; browser controls can clear any remaining site data.

International processing and retention

Google may process analytics data outside the UK under its applicable transfer safeguards. Google controls its analytics retention and processing as described in its privacy documentation. Local planner data remains until you delete it or clear browser storage.

Affiliate links

Amazon links can include an Associate tracking tag. Amazon may process data when you follow a link or make a purchase. Its own privacy terms apply. See our affiliate disclosure.

Your rights

Depending on the data involved, UK data-protection law may give you rights to access, correct, erase, restrict or object to processing, and to withdraw consent. You may complain to the UK Information Commissioner’s Office at ico.org.uk.