Create your family chart in the app, print it for the fridge, then keep it current with taps or Siri. Kids keep using the page. Android follows Play Store readiness.
The paper stays. The parent phone keeps up.
Ten can vacuum a room, run a load of laundry from start to finish, watch a younger sibling for half an hour, cook a simple breakfast. The chart is no longer about whether they can — it is about whether the family remembers to ask. Keep the star column; it still works at this age.
Eight to ten. Add one or two stretch chores with bigger star values. A vacuumed room or a folded basket is worth more than a made bed, and the chart should say so.
Stars are a record, not a currency. Use them to see what happened during the week. If your family pays for bigger extra jobs, keep that rule separate from ordinary family responsibilities.