How to Scan QR Codes on iPhone and Android

Scanning QR codes is easier than ever with modern smartphones. Whether you are using an iPhone or Android device, here is everything you need to know about scanning QR codes quickly and reliably.

Scanning on iPhone

Using the Built-in Camera (iOS 11+)

1. Open the Camera app

2. Point it at the QR code

3. A notification banner will appear at the top

4. Tap the banner to open the link

Using Control Center (iOS 12+)

1. Open Control Center (swipe down from the top-right corner)

2. Tap the QR Code Scanner icon

3. Point at the QR code — it scans automatically

Scanning on Android

Using Google Lens (Most Android Devices)

1. Open the Camera app

2. Point at the QR code

3. Tap the QR code link that appears on screen

Using the Built-in Scanner

Many Android manufacturers include a QR scanner in the quick settings panel. Swipe down from the top of the screen and look for a QR code icon.

Using QrLens Web Scanner

For the best scanning experience across all devices:

1. Open QrLens in your browser

2. Go to the Scanner page

3. Allow camera access when prompted

4. Point your camera at the QR code

5. The result appears instantly

QrLens also supports image scanning — upload a screenshot or saved image containing a QR code to decode it without a camera.

Troubleshooting

QR code not scanning? Try these tips:

• Ensure adequate lighting — QR codes need good contrast to scan
• Hold your device steady at 6-12 inches from the code
• Clean your camera lens if it is dirty or smudged
• Try a different angle — avoid extreme angles or glare
• Make sure the entire QR code is visible in the frame
• If the code is on a screen, increase brightness

Damaged QR codes: Thanks to error correction, QR codes can still scan even if up to 30% of the code is damaged. If scanning fails, try moving closer or adjusting the angle.

Privacy Considerations

Always be cautious when scanning QR codes from unknown sources. Malicious QR codes can redirect to phishing websites. Use a scanner like QrLens that shows you the decoded content before opening any links, giving you a chance to verify the URL.