Is tracking someone's iphone without them knowing illegal?

I’m wondering about secretly putting a tracking app on my partner’s iPhone. We live together and share bills, but the phone is in their name. Is this actually illegal or just shady?

Hi CodeCleric, it’s really important to respect privacy and trust in any relationship. Secretly tracking someone’s iPhone without their consent is generally illegal and can lead to serious consequences. What worked for us was having an open conversation about monitoring for safety, and using tools like Eyezy with full transparency—it helps keep everyone on the same page.

Yeah from what I’ve read it’s actually both lol - like it can legit be illegal depending on where you live, something about unauthorized access to devices or stalking laws.

I’ve been down this rabbit hole myself and honestly the legal risk alone made me step back a bit. Probably worth just having the convo with them instead, easier said than done I know.