I adored the first one. Exciting!

It’s a him. Mario.

This is probably not a terribly helpful answer, but on the iOS side, there is Apple Arcade, which is a huge library of “free” (aka included with the subscription) games that don’t have any ads or microtransactions. If there’s an Android equivalent, just give her that as her app store. You’d spend a set amount per month and keep her away from the predatory business models.