Privacy controls
Privacy
SFE DB does not require an account and does not ask for Roblox credentials, email, age, real name, or social account to use its tools.
Local plans
Tank plans are saved with browser local storage only when you choose Save. Share links put a limited, versioned copy of the plan in the URL fragment. A fragment is not secret; anyone with the link can read its contents.
Privacy choices
Analytics and advertising are separate controls. When a feature is configured for this deployment, it starts on by default until you turn it off. The choice is stored only in this browser. Clearing this site's browser storage resets the corresponding feature to its default-on state.
Optional analytics
When enabled for the deployment, Google Analytics 4 measures page views by default and anonymous task-completion events: successful income or payback calculations, local tank-plan saves, and copied income or tank-plan share links. These events include only their event name and the clean page path, location and title. They do not include entered rates, fish labels, plan contents, query strings, URL fragments, evidence files, account identifiers, or a user ID. GA4 may process ordinary browser, device, and session information. Google Signals and advertising personalization are disabled.
Turning analytics off prevents future Analytics events and removes GA cookies that this page can access.
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Advertising
When enabled for the deployment, one Adsterra Native Banner may appear on an eligible content page. Ads do not load on Privacy, Terms, About, or 404 pages. Adsterra and its advertising partners may process ordinary request, IP, device, cookie, and ad-interaction information under their own policies. SFE DB does not send calculator inputs, tank plans, evidence records, URL fragments, or local saves to the ad unit.
Turning advertising off removes this site's ad placement and prevents its Adsterra loader from being requested on later page views in this browser. It cannot remove data or cookies already controlled by an external advertising provider.
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Uploads and hosting
The evidence recorder downloads a JSON file locally and does not upload it. Hosting infrastructure may keep ordinary security and access logs; those logs are separate from these preferences.
Your controls
Use Clear local data in Tank Planner or clear this site's browser storage. Do not put personal information in plan names, row labels, notes, or evidence files.