As a consumer, I prefer Apple building all of that into the OS because I assume any other business will sell out at some point. I recall quite a bit of bad publicity when the menstruation trackers were found to be selling data.
> I typically do too until they incorporate some feature in a bad way. See: Dark Sky.
As a Dark Sky fan for years, I understand losing something you've gotten used to. But Apple Weather is great for most people, and die-hards like me can move to apps like Weathergraph.
The nice thing about Apple is it's incentives are not misaligned. Its revenues are largely based on selling products, not people's data. Whether or not they sell data anyway is perhaps an open question but decisions should tend to err on the side of product sales and most consumers want to control their data.
Nothing wrong with Apple building in-house solutions or integrating things into the OS. Problems start when a trillion dollar corporation uses their platform to strong-arm smaller development studios or individuals, shuts down their revenue stream for bullshit, confusing reasons, and steals their efforts instead of paying what is effectively chump-change to them, to reward the people who provided content to their platform.