I opened up the mobile game 2048 today, it's a game where the goal is to multiply multiples by 2 across a grid. It is offline as far as I know and last I checked numbers didn't need any personalization.
Any parent will recognise that having a 3 year old and a newborn requires a certain level of attention. Not to speak of the attention needed to perform at work, maintain a relationship with your partner, a clean home, healthy body and any other things you might have going on in life.