Cookies & Local Storage

No tracking cookies

logbooksimple does not use third-party advertising or analytics cookies. We use a first-party, cookieless analytics provider (Vercel Web Analytics) to measure aggregate page views and conversion events; it does not set cookies and does not track you across other websites.

What we store locally

The app stores the following in your browser so it works offline and remembers your preferences:

• device_id — a randomly generated identifier used to tag local sync metadata.
• theme — your selected light or dark mode preference.
• ai-consent-given — a local fallback flag remembering whether you accepted AI features.
• IndexedDB (Dexie) — your logbook entries, profile, custom tags, and chat history. This is the primary copy of your data when the app is used offline-first.
• Session cookies — issued by Supabase Auth to keep you signed in; these are HttpOnly and treated as strictly necessary.

Managing local data

You can clear local data from your browser settings. Deleting your account from the Settings page also clears local IndexedDB, localStorage, and service-worker registrations.