Ask HN: Incentive-based task manager for parents & children

What about a mobile app that facilitates incentive-based task completion between parents and children? A parent creates a "prize" that has a cost of X "points".The parent then creates multiple tasks (e.g. household chores) that award points upon completion. In order to complete a task the children must submit evidence of completion (e.g. pictures/videos of them washing the car, doing their homework, taking out the trash). Once the parent has approved the task, points are awarded to the children. The child can then use these points to redeem for a "prize" (e.g. spankin' new Xbox 720).