Apple

It’s worth reviewing your app permissions and limiting them. There are a few routes to do this, but Settings, then Privacy & Security, might be the easiest. There’s a lot here, but I advise looking at Location Services and removing or reducing permissions for apps you don’t think need them. You can toggle off Precise Location for many, since an approximate location is often enough for them to function the way you want. Other apps to keep an eye on are Contacts and Photos, as both now give you the option to allow limited access.