Your data, your choices.
Everything below is stored on this device only.
Security (PIN lock)
Set a 4–6 digit PIN so the app stays locked when you step away. Your PIN is hashed and stored only on this device — never sent anywhere. If you forget it, the only way back in is to erase all data.
Heads up: the PIN is a convenience lock, not encryption. Your entries are stored unencrypted in this browser's local storage. Anyone with physical access to this device and basic browser developer tools could bypass the lock and read your data. For maximum privacy, also use your device's own lock screen and a private browser profile.
Your data
Export bundles every fymv:* key into a single JSON file. Erase removes them and shows the welcome again.
Preferences
Anonymous analytics
Optional, cookie-free analytics via Plausible. Helps Dr. B see which sections help most. No personal data is collected. Leave the domain empty to disable entirely.