Short answers

No. It writes your plan as a staff card that you send to Piso 4 by share, email or a call. Piso 4 replies with what it can do; nothing is booked until it confirms.

Ask Piso 4. The app adds the question to the staff card and works out a drop-off time, but only the restaurant can say yes.

Not from the guest invite: every request and cue marked secret is left out of it, and the app points out words in the invite that match your secret requests. The check helps but cannot catch everything, so read the invite before you send it.

Piso 4 publishes no menu or price list. The app shows no prices, tiers or fees; you can keep your own budget as a private note on your phone.

Mark them for each guest so you do not forget, but tell Piso 4 yourself. The staff card only says how many guests have an allergy note.

The app suggests at least 2 working days before, or 5 before Mother's Day, Father's Day, Amor y Amistad and the last week of December. Piso 4 confirms its own notice.

Yes. Birthdays and anniversaries repeat on the same day; Mother's Day, Father's Day and Amor y Amistad on their rule. The app suggests the next one when it is close.

Only on your phone. The app has no account and no internet access.