Smartphones have become essential for banking, shopping, communication and entertainment. However, many apps request access to information they do not necessarily need for their main functions. Location history, microphone access, contact lists and background activity can all affect your privacy if permissions are not managed carefully.

The good news is that both Android phones and iPhones offer built-in privacy controls. Spending a few minutes reviewing these settings can help you limit unnecessary data access without giving up the features you use every day.

1. Check Which Apps Can Access Your Location

Many apps request location access even when their main function does not require it.

On Android, open Settings and look for Permission Manager or Location permissions. On an iPhone, go to Settings, then Privacy & Security, and select Location Services.

Review the apps listed and change unnecessary permissions to “While Using the App” or “Never”. Where available, disable precise location for apps that only need an approximate location.

Remember that navigation and ride-hailing apps may need location access to work correctly.

2. Stop Unnecessary Background Activity

Some apps continue running tasks when you are not actively using them. Depending on the app, this may consume battery, mobile data and processing resources.

On Android, check the battery settings for apps with unusually high background usage. On an iPhone, open Settings and select General, then Background App Refresh.

Disable background activity for apps that do not need frequent updates. Keep it enabled for services where timely notifications or background functionality are important.

3. Review Microphone and Camera Permissions

Social media, video-calling and recording apps may legitimately need access to your microphone or camera. Other apps may not.

Open your phone's privacy settings and review which applications have these permissions. Remove access from apps that have no clear reason to use them.

On supported Android devices, a green indicator appears when the camera or microphone is active. iPhones also display privacy indicators when these sensors are in use.

These indicators can help you notice unexpected access, although they do not tell you everything an app does with data it has already collected.

4. Limit Tracking and Advertising Personalisation

Apps and websites may use identifiers and activity information to personalise advertisements.

On an iPhone, open Settings, select Privacy & Security, and look for Tracking. You can review which apps have requested permission to track your activity across other companies' apps and websites.

On Android, review the advertising and privacy options available on your device. Menu names vary by Android version and manufacturer.

Turning off certain tracking options does not necessarily stop all advertising or prevent every form of data collection. It can, however, limit specific types of personalised tracking.

5. Check Which Apps Have Access to Your Contacts and Photos

A photo-editing app may need access to selected pictures, but it may not need your entire photo library. Similarly, a utility app might work perfectly well without access to your contacts.

Review these permissions and use limited or selected-photo access where available.

On iPhones, the Photos permission settings can allow access to selected images rather than the entire library. Android also offers photo-picker features on supported versions that let users share particular images without granting broad access.

The principle is simple: give each app only the access required for the task.

6. Strengthen Your Lock Screen and Account Security

Privacy settings are useful, but protecting your phone against unauthorised access is equally important.

Use a strong device passcode and enable biometric authentication if available. Consider hiding sensitive notification previews on the lock screen so that messages and verification codes are not visible to other people.

Also enable two-step verification for important accounts, particularly email, banking-related accounts and social media. Keep your phone's operating system and apps updated to receive security fixes.

Never share your banking PIN, password or one-time password with someone claiming to be customer support.

7. Delete Apps You No Longer Use

Unused apps may still retain account information or have permissions you granted earlier. Removing apps you no longer need reduces clutter and can limit unnecessary access.

Before deleting an app, check whether you have important files stored inside it and whether your account needs to be closed separately. Uninstalling an app does not always delete the information associated with its online account.

For services you no longer use, look for an account deletion option and review the service's privacy policy.

Bonus Tip: Use Your Phone's Privacy Dashboard

Android devices with supported versions include a Privacy Dashboard that helps users review recent access to sensitive permissions such as location, camera and microphone. The exact features and menu names depend on the device.

On iPhones, the App Privacy Report can provide information about how often apps access certain data and which domains they contact, once the report is enabled and data has been collected.

These tools can help you make informed decisions about which apps deserve continued access to your information.

Final Takeaway

Protecting smartphone privacy does not require installing another application. Start by checking location access, reviewing camera and microphone permissions, limiting unnecessary background activity and updating your phone regularly.

No single setting guarantees complete privacy, but reviewing permissions periodically can reduce unnecessary data sharing and help you maintain better control over your personal information.