Privacy Policy
Last updated: September 5, 2026
This app exists to help you spot patterns between what you eat and how you feel. Everything you log is private to your account. We do not sell your information, and we do not use it for advertising.
What we collect
Account details you give us: your first and last name, your email address, and — if you sign in with a password — an encrypted form of that password. If you sign in with Google, we receive your name and email address from Google and nothing else.
What you log: the dates you logged, the four time blocks in each day, the foods you recorded, the symptoms you rated and their 0–10 severity, the day flags you set (for example allergy season or a late night), and any note you typed for a day.
Preferences stored on your device: your light or dark theme choice, your default report window, and your cookie choice.
Basic technical information your browser sends with every request, such as your IP address and browser type, used to keep the service running and secure.
Health information
Symptom ratings and day notes can describe your health, so we treat them as sensitive. They are stored against your account only, readable only by you when signed in, and never shared with advertisers, employers, insurers, or other users.
This app is not a medical device and does not diagnose anything. Reports point to foods worth discussing with a dietitian or doctor; they never identify a cause.
Why we use it
To sign you in and keep you signed in, to save and show your daily log, to generate your reports, and to keep the service secure and working. That's it — there is no profiling, automated decision-making, or third-party advertising.
How long we keep it
Reports read the most recent 90 days of your history, and older logs are removed on that rolling schedule. Your account details are kept for as long as your account exists.
If you delete your account, everything goes immediately and permanently: your profile, every logged day, every food and symptom rating, your notes, and your sign-in record. Deletion cannot be undone.
Your rights
Wherever you live, you can see and correct your name in Settings, download a complete copy of your data with the "Download my data" button in Settings, and delete your account and all of its data from the same page.
If you are in the EU, UK, or Switzerland, you also have the right to object to or restrict processing, to withdraw consent, and to complain to your local data protection authority.
If you are in California, you have the right to know what we collect, to delete it, to correct it, and to not be discriminated against for exercising those rights. We do not sell personal information and we do not share it for cross-context behavioural advertising, so there is nothing to opt out of.
Who else touches your data
We use a hosting and database provider to run the app and store your logs, and Google if you choose Google sign-in. They act on our instructions and are not permitted to use your data for their own purposes.
Security
Data is encrypted in transit, access is scoped so that a signed-in account can only ever read its own rows, and passwords are never stored in a readable form. No system is perfect, so please use a strong, unique password.
Children
This app is not intended for anyone under 16.
Contact us
Questions, or want a copy of your data another way? Email support@foodsensitivitylog.com and we'll respond within 30 days.