Turning off tracking permissions and restricting ad identifiers is the key to preventing app tracking: First, go to Settings > Privacy & Security > Tracking, turn off "Allow App Request Tracking" to prevent cross-app tracking; second, click "Advertisement" and turn on "Restrict Advertisement Tracking" to blur identity identification; then, control sensitive permissions, such as location, album, microphone, etc., and authorize on demand; finally, reduce background refresh and cellular networking behavior, reduce data upload and battery consumption. These steps are simple and effective, and can greatly improve privacy and security.
Although Apple phones do a good job in privacy protection, if you don’t actively set it up, some apps will still quietly track your behavior and even share your data. In fact, as long as you take action, you can greatly reduce these "stalking". Below are some practical and simple operation suggestions.

Turn off cross-app tracking
This is the most direct and effective trick: Apple has introduced the "app tracking transparency" function since iOS 14.5. If the app wants to track you, you must seek your consent before you want it.
- Open Settings > Privacy & Security
- Click Tracking
- Turn off the "Allow App Request Tracking" switch
This way most apps can no longer request tracking permissions. If you only close the permissions of individual apps, you can also adjust them one by one here.

Don't let apps use ad identifiers
Each iPhone has a unique advertising identifier (IDFA), which advertisers often use to identify who you are and push personalized ads.
- Open Settings > Privacy & Security
- Scroll to the end and click on the ad
- Turn on “Restricted Ad Tracking”
Although this step cannot completely prevent the app from collecting information, it can blur your identity and make it more difficult for them to accurately identify you.

Control sensitive permissions such as location, photos, microphones, etc.
Many apps collect additional information by obtaining permissions such as location, album, microphone, etc. You can manage it in a targeted manner:
- Find the specific app in Settings
- After clicking in, set:
- Location access permissions (recommended to select "User-Time" or "Never")
- Album access permissions (whether all photos are allowed)
- Microphone and camera permissions (turn off unless necessary)
For example, you may need a microphone when chatting on WeChat, but you don’t need to keep it on.
Reduce background refresh and networking behavior
Some apps secretly upload data in the background even if you don’t open them.
- Settings > General > Backend App Refresh: You can close all or control certain apps separately
- Settings > Cellular Network: Check which apps are using traffic, and you can disable cellular permissions if you don’t need them.
This not only reduces the possibility of being tracked, but also saves electricity and traffic.
Basically, that's all. After setting it once, there is basically no need to change it frequently, but many people are prone to ignore it, especially the "restricted ad tracking". Don’t underestimate these steps. For privacy protection, it is a real security lock.
The above is the detailed content of How to stop apps from tracking on iPhone. For more information, please follow other related articles on the PHP Chinese website!

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