Every time an app asks "Allow access to your camera?" or "Allow access to your contacts?", it's asking for a specific permission. Understanding what each one actually means helps you make better decisions about what to allow.
What Are App Permissions?
Android requires apps to ask your permission before accessing sensitive parts of your phone — your camera, microphone, location, contacts, and more. You can grant or deny each permission, and change your mind later at any time.
Importantly: an app cannot access your camera without permission, even if it's installed. The permission system is enforced by Android at the operating system level.
The Main Permissions Explained
📍 Location
Lets the app know where you are. Three levels:
- Precise: GPS-level accuracy (within a few metres)
- Approximate: General area (within 1–3km) — safer for apps that just need your city
- Always: Tracks location even when the app is closed — only grant this to navigation or safety apps
- While using: Only when you have the app open — safe for most location-based apps
📷 Camera
Lets the app take photos and videos using your camera. Grant this to: camera apps, video call apps, QR code scanners, document scanning apps.
Be cautious about: Games, shopping apps, or flashlight apps that ask for camera access — they rarely need it.
🎤 Microphone
Lets the app record audio. Grant this to: voice messaging apps, voice call apps, dictation apps, voice assistants.
Deny for: Any app that doesn't have an obvious audio use case.
👥 Contacts
Lets the app read the names and numbers of everyone in your phone book. Messaging apps need this to show who's in your contacts. Most other apps don't.
Be cautious: Some apps upload your contacts to their servers (often stated in their privacy policy). Only grant to messaging apps you trust.
📱 Phone / Call Logs
Lets the app see your call history and make phone calls on your behalf. Almost no app genuinely needs this. Your default dialler app needs it. Others generally don't.
🗂️ Files / Storage
Lets the app read and write files on your phone. File managers, document editors, and photo editors need this. Most apps don't.
📲 Notifications
Lets the app send you notifications. This is worth being selective about — too many apps sending notifications degrades your ability to notice the important ones. Deny notifications to apps that don't genuinely need to interrupt you.
How to Review and Change Permissions
Check what permissions each app has:
Settings → Apps → [App Name] → Permissions
You'll see every permission the app has been granted. You can toggle any of them off here — the app will still work, just without that capability.
Suspicious Permission Requests — Red Flags
Be sceptical when these apps ask for these permissions:
| App type | Suspicious permission |
|---|---|
| Flashlight app | Location, Contacts, Camera |
| Calculator or game | Microphone, Contacts, Phone |
| Weather app | Contacts, Microphone, Files |
| QR scanner | Contacts, Phone, Location |
If an app asks for permissions that have nothing to do with its function, that's a signal it may be collecting data it shouldn't.