In other words, it’s not merely a policy that Apple will keep your health data — all of it — private on iCloud. If you’re using two-factor authentication for your iCloud account — and you most definitely should be — it’s mathematically secure via end-to-end encryption. Apple not only won’t hand it over in the face of a demand from law enforcement in a state where abortion has been criminalized, they can’t.
You can check which apps have access to what Health data in Settings → Health → Data Access & Devices.
Daring Fireball: Period-Tracking Apps and Data Privacy in Post-Roe America
My wife has been talking about getting an iPhone SE to have an Apple Watch since no Android watch has ever been worth the price tag nor experience.
While Apple is not a panacea of privacy as Gruber points out, now feels like too late the time to double down self-hosted solutions and on-device privacy measures.