SmartRedFilter

Turn your smartphone into a digital red study sheet! Point the camera at your textbook and red text disappears instantly, just like the classic red transparent sheet. • Key features: • Automatic detection and hiding of red text • Tap the screen to show or hide answers • Adjust filter intensity for your study material • On-device processing — camera does not send data • Works with books, notes and revision cards • Pro: • Hide other colours (orange, pink, green, blue) • Save processed screenshots • No adverts Study smarter wherever you are.