Red Sheet / Red Filter

Foodmenu.world

Contains adsIn-app purchases

About this app

Import PDFs exported from note apps like GoodNotes and use them for memorization.
Hide colored text or cover any area with blocks to create your own study sheets and switch visibility
with a single tap. Designed for simple, fast, and flexible memorizing on your phone or tablet.

PDF memorization
- Import PDFs from note apps or cloud storage
- Hide red, blue, orange, or other colored text for red-sheet style study
- Use adjustable blocks to mask any area even when colors are not available
- Scroll vertically across pages for smooth review

Photo and image memorization
- Add notebook photos, handouts, or whiteboard shots
- Hide words or formulas just like placing a sheet over the page
- Tap to show or hide only the parts you want to memorize

Flashcards and word lists
- Create simple vocabulary lists
- Hide definitions or words for quick self-testing

Study tools
- One-tap show and hide for efficient review
- Create multiple blocks quickly for consecutive items
- Auto-align blocks for clean organization
- Zoom without shifting your hidden areas
- Swipe between pages and images

Great for:
- Test prep and school study
- Language learning and vocabulary practice
- Certification exams
- Any subject that requires memorization

How to use:
1. Import a PDF or add photos
2. Hide text by color or place blocks on the parts you want to memorize
3. Tap to show or hide while reviewing
4. Repeat and study at your own pace

Terms of Service
https://hidevoicy.com/en/tos

Privacy Policy
https://hidevoicy.com/en/privacy

What’s new

We’ve improved the Red Sheet feature!
In addition to memorizing images, PDFs, and vocabulary lists with Red Sheet,
you can now also use Red Sheet to memorize text!
Keep up the great work with your memorization!