Help Center
Quick Scanning Tips
Better Lighting
Use bright, even lighting for best results.
Flat Surface
Keep the paper flat and avoid shadows.
Corner Markers
Ensure all six corner markers are visible.
Troubleshooting
Camera Freezing or Sleeping?
If the camera view becomes unresponsive or goes to sleep, tap the Restart Camera button located at the lower left of the camera interface to reset the connection.
Frequently Asked Questions
How do I scan an exam?
Go to the home tab and tap the camera button. Align the exam paper within the frame. The app uses OpenCV technology to automatically detect shaded areas and calculate scores in real-time.
Is the scanning really unlimited?
Yes! Free users can now scan unlimited times. We use secure local tracking combined with occasional interstitial ads (every 12 scans) when internet is available. Premium users enjoy 100% ad-free unlimited scanning.
Where is student data stored?
To prioritize privacy, all student names, codes, and scores are stored in an encrypted SQLite database directly on your device. Data is only transmitted when you choose to export it.
How do I export results?
Open a specific exam, and tap the 'Share' icon. You can generate an Excel file which can be shared via email or saved to your cloud storage.
How do I delete my account?
To delete your account and all associated data, go to the Account tab, scroll down to the 'Danger Zone' section, and tap 'Delete Account'. This will permanently remove all your exams, student data, and scanned photos from both the device and our authentication system. This action is irreversible.
Still need help?
Email Support
driftvelocity.app@gmail.com