Mask Note: Image Occlusion
Photo flashcards for studying
Free · Designed for iPad. Not verified for macOS.
Mask Note turns any photo into a self-quiz. Cover the parts you need to memorize on a textbook page, your handwritten notes, an anatomy diagram, a map, or sheet music, then tap each mask to reveal the answer. It is image occlusion made simple: snap, mask, reveal, remember.
■ Mask right on the photo
· Take a photo or pick one from your photo library, then cover what you want to learn
· Use rectangles or freeform polygon masks to match any shape
· Label each mask so you know what you are recalling
· Zoom and pan to cover small text precisely, and move or resize masks anytime
· Find text in the photo and tap a word or a line to mask it, processed on your device (Korean and English text)
· Pick several photos at once and turn them into notes in one folder (up to 20)
· Edit notes whenever you like: add, delete, relabel, with undo and redo
■ Tap to reveal and test yourself
· Sample notes are ready the first time you open the app
· Tap masks one by one in study mode to check your answer
· Four study modes: hide all, hide one, in order, and missed ones only
· Press and hold to peek, and mark what you missed to review just those next time
· Diagrams, labeled figures, maps, charts, and scores that are hard to turn into text flashcards stay as images
■ Review before you forget (spaced repetition, SM-2)
· Today's review picks the notes that are due and adjusts the next date by how hard each one felt
· Get a reminder on days when you have notes to review
· Set an exam date, folder, and daily goal to see what to study today
· Go over every note once more right before the exam
■ Folders and optional backup
· Organize notes by subject or exam
· Back up to your own Google Drive and share by link if you want
· Send a note to a friend as a file, and open notes you receive without signing in
■ Study stays on your device by default
· No sign-up. Photos and notes are processed and stored on your device by default
· Photo editing, text recognition, and study work offline
· Drive backup, if you choose it, sends photos and note data to your own Google cloud, and sharing goes through the app you pick
· Drive backups remain after you uninstall the app and can be deleted in Drive
· Ads, analytics, and text recognition SDKs may process identifiers and usage and diagnostic data
Great for
· Students with a lot to memorize for school, college entrance, licensing, or certification exams
· Medical, nursing, and health science students learning anatomy from figures
· Anyone memorizing maps, charts, vocabulary pages, or music
Stop just rereading. Cover it, reveal it, and make it stick. Free with ads.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Updated the developer website information used for ad provider verification.
Fixed bottom tab display overflow when using larger text settings.
The developer, HyunChol Jo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
- Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HyunChol Jo
- Size
- 90.4 MB
- Category
- Education
- Compatibility
Requires iOS 15.5 or later.
- iPhone
Requires iOS 15.5 or later. - iPad
Requires iPadOS 15.5 or later. - iPod touch
Requires iOS 15.5 or later. - Mac
Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English and Korean
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 HyunChol Jo