Your iPhone has a feature called Significant Locations, which is designed to help Siri and Maps learn your routines so they can provide better, more personalized suggestions. For example, to remind you to leave for work when traffic is bad, or to suggest a restaurant near your gym.
Although Significant Locations does keep a surprisingly detailed log of where you’ve been, when, and how often, Apple has gone to admirable lengths to minimize its threat to your privacy.
Arguably, a bigger threat comes from third-party apps like the almost ubiquitous Google Maps, which have detailed access to your location history and are much less picky about who they share it with.
What is Significant Locations and how does it work?
Significant Locations is an iPhone feature that keeps a record of places you visit often to personalize services like maps, photos, and suggestions. Unlike Google Maps, Significant Locations is not a full GPS history log. Instead, it collects periodic location signals using geolocation indicators such as GPS, WiFi, cell tower, and Bluetooth connections. Over time, it detects patterns such as:
- How often you visit a location
- How long you stay of there
- How recently you last visited
Once it identifies these patterns, it stores the locations locally on your device. So a coffee shop you visit daily will be stored, but not a one-time road trip.
This information is used by Maps to predict routing due to traffic, make location-based suggestions in Calendar, group Memories in Photos, create location-based alerts and Siri suggestions, and more.
How secure is Significant Locations?
Significant Locations data is stored locally on your device. The feature is enabled by default but only works if Location Services are turned on and your phone is secured using a passcode or biometric lock.
If Sync to iCloud is enabled, your data will also be stored on Apple servers. However, Apple says that Significant Locations data is end-to-end encrypted (E2EE)(nova janela), with the encryption keys derived from your device passcode.
This means your Significant Locations data is not accessible to Apple, even if it’s synced to iCloud and Advanced Data Protection(nova janela) (optional E2EE for iCloud) is not enabled. Metadata may still exist, however, and since iOS is closed-source, we just have to take Apple’s word on this.
Anyone with physical access to your unlocked phone can view your Significant Locations. Depending on your recovery methods, anyone with full control of your Apple ID and one of your trusted devices(nova janela) can access that data too.
How to check your iPhone location history (Significant Locations data)
On your iPhone or iPad, open the Settings app and go to Privacy & Security → Location Services → System services → Significant Locations & Routes. From here, you can view your Significant Locations records.
How to delete your iPhone location history (Significant Locations)
1. On your iPhone or iPad, open the Settings app.
- Go to Privacy & Security → Location Services → System services → Significant Locations & Routes.
- Toggle the Significant Locations & Routes switch off.
Beware location tracking by apps
Many of the apps you install on iOS can track your location, but they must go through a permission system and the system location APIs controlled by Apple. These limit the amount of direct geolocation data that an app can access, but apps can use a number of indirect methods.
How iOS handles location permissions
Apple’s iOS uses a permission-based model that requires your explicit consent before any app can access your location data. When an app requests location access, you are presented with several options:
- Allow Once: Grants access for a single session.
- Allow While Using App: The app can access location only when it is actively open or in the foreground.
- Allow Always: The app can access location even in the background (requires justification).
- Don’t Allow: Denies access entirely.
Crucially, for Allow Always permissions, iOS requires the app developer to provide a reason for background access. You’ll also occasionally be reminded of this permission by a system prompt asking if you want to keep it enabled.
When the app is actively accessing your location data, you’ll see a blue location indicator icon in your notification bar (a gray icon indicates that your location was recently accessed by an app).
To see how often an app has accessed your location data, you can view its App Privacy Report if you’ve turned this feature on. To do this:
- Open the Settings app.
- Go to Privacy & Security → App Privacy Report (under Transparency Logs).
- Tap Turn On App Privacy Report.
Once enabled, go to App Privacy Report whenever you want to check how often apps access your location and other sensitive data.
Approximate vs precise location on iPhone
By default, apps that request location permissions use your Precise Location. This uses various sensors on your iPhone to accurately locate you within a few meters. However, since iOS 14, you can disable Precise Location for each app that requests it, forcing them to use your approximate location instead (to roughly within a few kilometers).
To disable Precise Location, tap Precise: On when an app first asks for location permissions (see screenshot above). Or open the Settings app, go to Privacy & Security → Location Services, select the app, and toggle the Precise Location switch off. You can also change when an app can request location data from this screen.
Geofencing
Apps register geofences using Apple’s location APIs. When a user enters or leaves these areas, the app can trigger actions. This is often used for reminders or location-based services such as retail apps triggering store notifications, and smart-home apps triggering automations.
Geofencing lets apps collect some background location data, even when restricted to Allow While Using App permissions. The only way to prevent it is to Never allow location access for the app.
Passive location inference
Even without explicit GPS access, apps may infer your location using things like your IP address, nearby WiFi networks, Bluetooth beacons, and metadata from photos(nova janela). Although these techniques typically provide less precise location data than full GPS access, they can still reveal your location to around the city or even neighborhood level.
And once apps have this information, they can use it themselves to target you with personalized ads and/or sell it to data brokers(nova janela) and analytics platforms.
Your best defense against such techniques is to use a VPN to hide your real IP address, and DNS filtering (such as Proton VPN’s NetShield Ad-blocker feature) to block tracker scripts.
Individual apps and services may also offer their own ways to view and delete location history they’ve collected about you. For example, you can delete Google Maps search history or turn off Instagram location sharing(nova janela) using in-app settings.
Final thoughts on iPhone location tracking
Apple’s Significant Locations feature shows how location history can be used in a relatively privacy-conscious way. Its data is stored locally (or end-to-end encrypted if synced with iCloud), and it is designed primarily to improve useful built-in services like Siri and Maps, rather than to build a detailed profile of your movements for advertising purposes. However, Significant Locations can still provide a surprisingly detailed record of places you visit regularly, so checking and clearing its data from time to time may be a sensible precaution.
In practice, the bigger privacy risk often comes from the apps you install. Many third-party apps request location access and may collect, store, and share that information with advertisers, analytics companies, or data brokers. Even when iOS limits direct GPS access, apps can sometimes infer your location through other signals.
The best way to stay in control of your location data is to regularly review your location permissions, disable Precise Location for apps that don’t truly need it, and remove access entirely where possible. Combined with tools like VPNs and tracker blocking, these steps can help reduce how much of your movement history ends up in the hands of companies you didn’t intend to share it with.
