Overview

App permissions control what data and hardware features apps can access. A calculator app shouldn't need your contacts, and a weather app probably doesn't need your microphone.

Step 1: Android App Permissions

Android gives granular control over individual permissions.

1

Review All Permissions

Open Settings → Privacy → Permission manager
You'll see categories: Camera, Microphone, Location, Contacts, etc.
Tap each category to see which apps have access
Review 'Allowed all the time', 'Allowed only while using', and 'Denied'

2

Change Individual App Permissions

Settings → Apps → Select an app → Permissions
Tap each permission to change: Allow, Only while using, Deny
Set location to 'Only while using' for most apps
Deny camera/microphone for apps that don't need them
Revoke contacts access from games and utilities

3

Check Special Access

Settings → Apps → Special app access
Review 'Display over other apps', disable for suspicious apps
Check 'Modify system settings', limit to trusted apps
Review 'Install unknown apps', disable for all if possible
Check 'Device admin apps', remove any you don't recognise

Warning:

If you find apps with admin access you didn't authorise, remove their access immediately and run a security scan.

Step 2: iPhone App Permissions

iOS provides comprehensive privacy controls.

1

Review Privacy Settings

Open Settings → Privacy & Security
Tap each category (Location Services, Contacts, Camera, etc.)
Review which apps have access to each
Toggle off access for apps that don't need it

2

Manage Location Services

Settings → Privacy & Security → Location Services
Set to 'While Using' for most apps (not 'Always')
Disable 'Precise Location' for apps that only need general area
Scroll to bottom → System Services → disable unnecessary location tracking
Review 'Significant Locations' and clear history if desired

3

Check App Tracking

Settings → Privacy & Security → Tracking
Disable 'Allow Apps to Request to Track' to block all tracking
Review which apps have tracking permission
Revoke tracking for any apps you don't want tracking you
iOS App Tracking Transparency blocks cross-app tracking

4

Review App Privacy Reports

Settings → Privacy & Security → App Privacy Report
Enable if not already active
See which apps accessed your data and when
Identify apps accessing data frequently or unexpectedly
Use this to make informed decisions about permissions

Step 3: Ongoing Permission Maintenance

Make permission reviews a regular habit.

1

Monthly Permission Audit

Set a monthly reminder to review permissions
Remove permissions from apps you haven't used recently
Uninstall apps you no longer use entirely
Check for new permission requests after app updates
Keep your operating system updated for latest privacy features

2

General Permission Guidelines

Camera: Only photo/video apps, video call apps, QR scanners
Microphone: Only voice/video call apps, voice recorders
Location: Only maps, weather, ride-sharing, use 'While Using'
Contacts: Only messaging, email, phone apps
Storage: Only file managers, photo editors, cloud storage