A no-app page with big checkboxes for the people who will never install anything. This demo is real: say something below and Tarvis answers.
YouGrandma needs her Tuesday list: pills at 9, water the plants, call the pharmacy.
TarvisThe Tuesday page for Grandma is ready: three items, big checkboxes, works in any browser. Send her the link once and it updates itself.
Grandmachecked my pills
TarvisPills, checked off at 9:04. The room can see it. Two to go.
One free live reply, no signup.