Instant by design
Adding, ticking off and editing all land on this device first, so nothing ever waits on a spinner.
Everything you need to do, saved the second you type it
This list lives on your device first, so it never waits for a connection. When you are online it quietly catches up with your other devices in the background.
Opening your list
How this list works
Fine without a connection
Keep working on a train or a plane. Changes queue up here and go out the moment you are back online.
Your devices stay in step
Open the same list on a phone or a laptop. When two devices disagree, the most recent edit wins.