ToDuet

Most to-do apps are solos. Your household, though, runs as a pair — groceries, school runs, the thing that needs picking up on the way home. ToDuet is a shared list designed from the start for two people: one list you both see, where passing a task to your partner takes the same single tap as adding one for yourself.

• One shared list, always in sync between both phones
• Assign any task to either person — no forwarding, no screenshots, no "did you see my text?"
• Checking things off is a duet too: either of you can close out the other's task
• Calm by design — no red badges, no streaks, no nagging

ToDuet is in active development for iPhone.