FAQ
Last updated October 20, 2026
Questions, answered.
The short answers to how Piato works — signing in, logging, estimates, and your account.
How do I sign in?
Use Sign in with Apple or Google. The same account works in the iPhone app and on the website. There are no in-app purchases.
How do I log a meal?
Open Log. Type a meal, take a photo, pick a library photo, or scan a barcode. The first Coach send asks you to allow sharing text with OpenAI. Photo scanning is a separate toggle in You. Camera permission is only for taking the picture.
Why are calories estimates?
Coach matches foods to USDA and Open Food Facts records and drafts amounts you can edit. Confirm writes the diary. Treat the numbers as a log you control, not a lab measurement or medical advice.
How do I delete my account?
You → Delete account. That removes the Piato account and diary we store. It does not delete your Apple or Google account.
Where is the privacy policy?
You → Privacy policy, or read it on the website at /privacy.