A QR Code (Quick Response Code) is a type of two-dimensional barcode that can store information and be quickly scanned using a smartphone, tablet, or other camera-enabled device.
QR codes are commonly used to provide instant access to:
- Websites
- Contact information
- Wi‑Fi network details
- Event tickets
- Product information
- Mobile applications
- Online payments
Instead of manually typing a web address or Wi‑Fi password, a user can simply scan the QR code and access the information automatically.
For example, scanning a QR code in a café may instantly display the menu, while scanning one on a router may automatically connect your phone to a Wi‑Fi network.
QR codes have become increasingly popular because they are fast, convenient, and widely supported by modern smartphones without requiring additional software.
How to Scan a QR Code on iPhone
Method 1: Using the Camera App
- Open the Camera app.
- Point the camera at the QR code.
- Hold the phone steady.
After a few seconds, a notification banner should appear. Tap the notication to open up the target location for the QR Code.
If Nothing Happens
Check that QR code scanning is enabled:
Tap Settings > Camera > Scan QR Codes – Check this is enabled.
How to Scan a QR Code on Android
Most Android phones support QR scanning directly through the Camera app.
Using the Camera App
- Open Camera.
- Point the camera at the QR code.
- Wait for the phone to recognise it.
- Tap the link or notification that appears.
If QR Codes Are Not Detected
Try:
- Google Lens
- Samsung Camera QR Scanner
- Built-in camera settings
Many Android devices include QR scanning as part of the camera software.
Scanning a QR Code Stored as an Image
Sometimes the QR code is already saved as a screenshot or photograph.
iPhone
- Open the image in Photos.
- Press and hold on the QR code.
- Tap the detected link.
Android
- Open the image.
- Use Google Lens.
- Select the QR code.
- Open the detected content.
Stay Safe When Scanning QR Codes
While QR codes are convenient, they can also be used maliciously.
Before opening a QR code link:
✅ Check the website address
✅ Make sure the source is trusted
✅ Be cautious in public places
✅ Avoid entering passwords on unfamiliar websites
Be Suspicious Of
❌ QR codes attached over genuine signs
❌ Codes found in unexpected emails
❌ Requests for banking details
❌ Unknown payment requests
Remember: a QR code can direct you to any website.