Digital Red Sheet

Digital red sheet supports learner's memorizing.
There are many students who usually memorize using red sheets.
If you put a red sheet over a letter written with a red pen, it disappears and you can't see it. Also, the place where a green marker is drawn becomes black and you can't see it.
In this way, what you usually do with a red sheet is reproduced on a smartphone with a digital red sheet.
We support green sheets as well as red sheets.

Key Features:
•You can use it for free.
•You can study anywhere and anytime on your smartphone.
•If you use a red sheet, the parts written with a red pen disappear and the parts painted with a green pen become black.
•If you use the green sheet, the parts written with the green pen disappear and the parts painted with the red pen become black.
•Photos are not uploaded to the server, protecting your privacy.
•You can quickly access past viewed photos from your history.