Memory Notes Documentation
Memory Notes is a powerful platform for creating, sharing, and studying eBooks, flashcards, and audiobooks. Learn efficiently with spaced repetition and AI-powered features.
Create and share digital notes and eBooks, study with flashcards using spaced repetition, generate audiobooks automatically, and analyze your learning patterns with AI.
Build your own eBooks and notes. Share them for free or sell them to others.
Study with flashcards using scientifically-proven spaced repetition algorithms.
Convert your notes to audiobooks and learn on the go.
Get personalized learning schedules and pattern analysis from AI.
Core Concepts
Before you start, familiarize yourself with these key terms and concepts.
A book-level container that holds multiple papers. Notes can be shared, sold, or kept private. Each note has its own learning settings and options.
The actual learning unit (flashcard) with a front and back side. Papers can include text, images, masks, and footnotes.
The spaced repetition schedule for reviews (e.g., 1d 4d 7d 14d). Papers advance through steps based on difficulty ratings.
The current step/stage of a paper in the learning process. Higher counts indicate more progress toward graduation.
When a paper completes all learning steps. Graduated papers have extended review intervals that grow exponentially.
Hidden content areas in papers that can be revealed one by one during study. Great for testing recall.
Sharing & Distribution Options
| Option | Description |
|---|---|
| Public | Make your note visible in the marketplace. Can be free or paid. |
| URL Sharing | Allow access via direct link even if the note is not public. |
| Note Download | Allow others to clone your note to their own library. |
| PDF Download | Provide a downloadable PDF file for your note. Membership |
| Audiobook | Generate and share audio versions of your note. |
Quick Start Guide
Get started with Memory Notes in just 10 minutes. Follow these steps to create your first note and begin learning.
-
Create an Account
Sign up or log in to your account. You need to be logged in to create and manage notes.
Screenshot: Login page -
Go to My Notes
Navigate to "My Notes" from the main menu. This is your personal dashboard for managing all your notes.
Screenshot: My Notes page -
Create a New Note
Click the "Create New Note" button. Enter a title, description, and optionally upload a thumbnail image.
Screenshot: Create note form -
Add Papers (Flashcards)
Add papers to your note. Each paper has a front (question/prompt) and back (answer/content). Use the editor to add text, images, and masks.
Screenshot: Paper editor -
Set Learning Steps
Configure your spaced repetition schedule. Use presets or enter custom intervals like
1d 3d 7d 14d 30d.Screenshot: Learning steps settings -
Start Learning!
Go back to My Notes and click "Start Learning" on your note. Rate each paper by difficulty to progress through the learning steps.
Screenshot: Learning mode
For optimal learning, use "Review" mode which shows only papers that are due for review. This ensures efficient use of your study time.
Screen Guide
Detailed guide for each screen and its features.
Main (Note Market)
Purpose
The main marketplace where you can discover, search, and access public notes from other creators.
Key Features
- Unified Note Search: Search, filter, and sort both free and paid notes in one place.
- Sorting Options: Sort by popularity, newest, title, paper count, or price.
- Search Fields: Search by title + description, title only, or author name.
- Price Filter: Filter by price range for paid notes.
- Note Details Modal: View preview, description, learning steps, and available actions.
- Share Links: Notes can be shared via hash links (
#hash-note{id}).
Available Actions
- Copy share link
- Open audiobook (if available)
- Open eBook Viewer
- Download (clone) to your library
- Subscribe to note updates
Permissions & Limits
- Login required for download/subscribe actions.
- Free users: Limited to 10 owned notes (including downloads).
My Notes
Purpose
Your personal dashboard for managing owned and subscribed notes, viewing statistics, and configuring user options.
Key Features
- My Notes List: View all your notes with statistics (total papers, progress, graduation rate, due/overdue counts).
- Subscribed Notes: Manage notes you've subscribed to. Unsubscribe or download if allowed.
- Learning Statistics: Charts showing study volume and time with multiple period options.
- User Options: Configure default viewer mode, reminder settings, and learning preferences.
Note Statistics Display
Each note card displays the following statistics:
- Total Papers: Number of papers in the note.
- Progress: Percentage of papers that are waiting for next review (not due yet).
- Graduation Rate: Percentage of papers that have completed all learning steps.
- Due / Overdue: Number of papers due for review now.
Learning Statistics Charts
View your learning history with interactive charts. Available period options:
| Period | Description |
|---|---|
| 7 Days | Daily breakdown of the last week |
| 1 Month | Daily breakdown of the last 30 days |
| 1 Year | Monthly breakdown of the last 12 months |
| All Time | Complete learning history since account creation |
Start Learning Options
| Mode | Description | Tracks Progress |
|---|---|---|
| Review | Study due papers only | Yes |
| Tag Review | Study due papers with specific tags | Yes |
| Free learning | Browse all papers freely | No |
| Random Tag Learning | Browse papers with specific tags | No |
User Options (Global Settings)
These settings apply to all notes unless overridden by individual note settings.
| Option | Description | Default |
|---|---|---|
| Default Viewer Mode | Single or dual-page view in eBook Viewer. | Single |
| Skip Graduated Papers | Exclude graduated papers from review sessions. | Off |
| Max New Papers/Day | Limit new papers introduced daily (across all notes). | Unlimited |
| Max Total Papers/Day | Limit total papers studied daily (across all notes). | Unlimited |
| Show Front on Back | Display front content when viewing the back side. | Off |
| Fixed Review Order | Review papers in sequence order instead of due time order. | Off |
| Hide Footnotes | Hide footnote content during learning sessions. | Off |
Reminder Settings
Configure notifications to remind you when papers are due for review.
| Channel | Description | Availability |
|---|---|---|
| Web/App | Browser and PWA push notifications. | All Users |
| Email notifications for due reviews. | All Users | |
| Kakao | KakaoTalk notifications (Korean language only). | Membership |
Reminders can be triggered based on: (1) Progress percentage dropping below a threshold, or (2) Number of overdue papers exceeding a limit.
Note Edit
Purpose
Create and edit notes, manage papers, configure sharing/selling options, and set learning parameters.
Note Basic Settings
| Setting | Description |
|---|---|
| Language | Select note language(s) for WPML multilingual support. Title and description are stored per language. |
| Title | Note title displayed in the marketplace and My Notes. |
| Description | Detailed description shown in note details modal. |
| Thumbnail | Cover image for the note. Recommended ratio: 16:9. |
Spaced Repetition Settings
Configure the learning schedule for this note.
Time Unit Format
| Unit | Symbol | Example |
|---|---|---|
| Seconds | s |
60s = 60 seconds |
| Minutes | m |
30m = 30 minutes |
| Hours | h |
1h = 1 hour |
| Days | d |
7d = 7 days |
Learning Steps
- Enter intervals separated by spaces (e.g.,
1d 4d 7d 14d 30d). - Presets: Choose from recommended presets for different learning goals.
Asterisk (*) Steps - Infinite Repeat
Steps marked with * (e.g., 1d* 4d 7d) have special behavior:
| Difficulty | Normal Step | Asterisk Step |
|---|---|---|
| Very Hard | Reset to step 1 | Drop one step (not full reset) |
| Hard / Normal / Easy | Progress normally | Stay at current step (repeat) |
| Very Easy | Advance +3 steps | Advance +1 step |
AI Optimize
Get AI-recommended learning steps based on your content and learning goals.
- Enter your learning goals and available study time.
- AI analyzes content difficulty and suggests optimal intervals.
Note-Level Learning Options
These settings override User Options for this specific note.
- Skip Graduated Papers: Exclude graduated papers from this note's review sessions.
- Max New Papers/Day: Limit new papers introduced daily for this note.
- Max Total Papers/Day: Limit total papers studied daily for this note.
- Show Front on Back: Display front content on back side.
- Fixed Review Order: Review in sequence order instead of due time.
- Hide Footnotes: Hide footnotes during learning.
Sharing & Publishing
| Option | Description |
|---|---|
| URL Sharing | Allow access via direct link (even if not public). |
| Public | Make visible in marketplace. Can be free or paid. |
| Price | Set price for paid notes. Leave empty for free. |
| Discount | Optional discount percentage for paid notes. |
Visibility Options
Control what features are available to viewers/purchasers:
- eBook Viewer: Allow reading in eBook format.
- Note Download: Allow cloning to user's library.
- Audiobook: Allow listening to audio version.
- PDF Download: Allow PDF file download. Membership
Subscriber Notifications
Send update notifications to users who subscribed to your note.
Sending subscriber notifications costs points. The cost depends on the number of subscribers. Points can be earned through sales or purchased separately.
Paper List Management
- Sort: By created date, next review, step, sequence, etc.
- Reorder: Drag and drop to change paper sequence.
- Search: Find papers by content or tag.
- Items per Page: Standard pagination. Membership 500/1000 per page options.
Bulk Actions
Select multiple papers and apply actions:
- Study selected papers
- Adjust review time (add/subtract days)
- Adjust review step
- Reset learning progress
- Swap front and back content
- Move to another note Membership
- Delete papers
Changed learning steps take effect from the next study session, not immediately for all papers. Existing papers retain their current step until reviewed.
Paper Edit
Purpose
Create and edit individual papers (flashcards) with rich content, masks, and footnotes.
Paper Structure
| Field | Description |
|---|---|
| Front | Primary content shown first (question, prompt, or main content). |
| Front Footnote | Additional notes displayed below front content. |
| Back | Secondary content shown after flip (answer, explanation). |
| Back Footnote | Additional notes displayed below back content. |
| Tags | Comma-separated labels for organization and tag-based learning. |
Rich Text Editor Features
TinyMCE editor provides comprehensive text formatting:
- Text Formatting: Bold, italic, underline, strikethrough, text color, highlight.
- Paragraphs: Headings, alignment, lists (ordered/unordered), indentation.
- Media: Images, tables, horizontal rules.
- Links: Insert and edit hyperlinks.
Content Input Methods
| Method | Description |
|---|---|
| Direct Typing | Type directly in the editor. |
| Image Upload | Click upload button to select files. |
| Paste Image | Paste images directly from clipboard (Ctrl+V). |
| Drag & Drop | Drag image files into the editor. |
| Word/HWP Paste | Paste from Word or HWP. Unnecessary formatting is automatically cleaned. |
| YouTube Embed | Paste YouTube URL to auto-embed video player. |
Mask & Memo Tools
Interactive elements for effective learning:
| Tool | Description | Usage |
|---|---|---|
| Mask (Blank) | Hide selected text with a cover that can be revealed during study. | Select text → Click mask button |
| Memo | Add hover tooltip to selected text for additional explanation. | Select text → Click memo button → Enter tooltip text |
Use keyboard shortcuts for faster masking. Check the editor toolbar for available shortcuts.
Auto-Save & Offline Support
| Feature | Description |
|---|---|
| Auto-Save | Drafts are automatically saved to browser localStorage every 1 minute. Recover unsaved work if browser closes unexpectedly. |
| PWA Offline Mode | Continue editing even without internet connection. Changes are stored locally and synchronized when connection is restored. |
| Manual Save | Click Save button or use Ctrl+S to save immediately to server. |
When offline edits are synced, you will see a notification. If conflicts occur, the most recent version is kept.
Limits
| Limit | Free | Memebership |
|---|---|---|
| Characters per paper | 2,000 | 4,000 |
| Image file size | 7MB | |
| Supported image formats | JPG, PNG, GIF, WebP | |
Learning Mode
Purpose
Study your papers with spaced repetition. Rate difficulty to progress through learning steps.
Learning Session Info
At the start of each session, you can see:
- Total Papers: Number of papers in the note.
- New Papers: Papers that haven't been studied yet (review count = 0).
- Waiting: Papers waiting for next review (not due yet).
- Due: Papers ready for review now.
- Graduated: Papers that completed all learning steps.
Difficulty Buttons
After viewing a paper, rate its difficulty to determine the next review interval:
| Button | Effect | Asterisk Step Behavior |
|---|---|---|
| Very Hard | Reset to step 1 | Drop one step (not reset) |
| Hard | Stay at current step | Stay (infinite repeat) |
| Normal | Advance +1 step | Stay (infinite repeat) |
| Easy | Advance +2 steps | Stay (infinite repeat) |
| Very Easy | Advance +3 steps | Advance +1 step |
Graduation
When a paper passes the last learning step, it graduates.
Graduated papers have extended review intervals calculated as: last step × 2.5^n (where n increases with each successful review). For example, if the last step is 30d, graduated intervals become 75d, 187d, 468d, etc.
Active Learning Options
These options affect how papers are presented during study:
| Option | Description | Effect |
|---|---|---|
| Skip Graduated Papers | Exclude graduated papers from review sessions. | Focus on papers still in learning phase. |
| Show Front on Back | Display front content when viewing back side. | See both sides simultaneously. |
| Fixed Review Order | Review papers in sequence order instead of due time. | Maintain original paper order. |
| Hide Footnotes | Hide footnote content during study. | Cleaner study view. |
Daily Limits
When daily limits are reached, you will see a warning message:
| Limit Type | When Reached |
|---|---|
| Max New Papers/Day (User) | Only review papers (not new) are shown. Applies across all notes. |
| Max New Papers/Day (Note) | Only review papers for this specific note are shown. |
| Max Total Papers/Day (User) | Session ends. No more papers shown today. |
| Max Total Papers/Day (Note) | Session ends for this note. Other notes can still be studied. |
User-level limits take priority over note-level limits. If both are set, the stricter limit applies.
Study Tools
| Tool | Description |
|---|---|
| Timer | Track time per card and total session time. Recorded for statistics. |
| TTS (Text-to-Speech) | Listen to selected text or entire card content read aloud. |
| Mask Control | Reveal masked content one by one or all at once. |
| Fullscreen | Distraction-free study mode with hidden browser UI. |
| Shuffle | Randomize paper order during study session. |
Keyboard Shortcuts
Speed up your study with keyboard shortcuts:
- Space / Enter: Flip card
- 1-5: Rate difficulty (1=Very Hard, 5=Very Easy)
- Arrow keys: Navigate (in free learning mode)
- M: Reveal next mask
eBook Viewer
Purpose
Read notes in a book-like format with search, navigation, and accessibility features.
View Modes
| Mode | Description | Best For |
|---|---|---|
| Single Page | One page per screen. | Mobile, focused reading |
| Dual Page | Two pages side by side (front/back). | Desktop, book-like experience |
Viewer Features
| Feature | Description |
|---|---|
| Note Info | View cover, description, statistics (papers, views, downloads), and author info. |
| Content Search | Search within all papers. Results are highlighted and you can jump to matching pages. |
| Page Navigation | Jump to specific page using slider or direct input. |
| TTS (Text-to-Speech) | Listen to page content read aloud. |
| Fullscreen | Immersive reading with hidden browser UI. |
| PDF Download | Download PDF file if enabled by note owner. Membership |
Copyright Protection
Notes viewed by non-owners have content protection enabled:
| Protection | Description |
|---|---|
| Copy Protection | Text selection and copy/paste is disabled for non-owners. |
| Right-Click Disabled | Context menu is blocked to prevent save/copy options. |
| View Count Tracking | Views are counted with a 5-minute interval limit to prevent duplicate counting. |
Access Permissions
| Note Type | Who Can View |
|---|---|
| Public Free | Everyone (including guests) |
| Public Paid | Purchasers only |
| URL Shared | Anyone with the direct link |
| Private | Owner only |
Report Inappropriate Content
If you find content that violates guidelines, use the Report function:
- Click the Report button in the viewer toolbar.
- Select a reason from the dropdown.
- Optionally provide additional details.
- Submit the report for review.
Audiobook
Purpose
Listen to audio versions of notes. Generate audiobooks from your own notes for learning on the go.
Audiobook Library
Browse and listen to audiobooks from public notes:
- Free Audiobooks: Public free notes with audiobook enabled.
- Paid Audiobooks: Public paid notes with audiobook enabled. Purchase required.
Playback Features
| Feature | Description |
|---|---|
| Play/Pause | Standard playback controls. |
| Loop | Repeat playback continuously for immersive learning. |
| Progress Bar | Seek to any position in the audio. |
| MP3 Download | Download audio file for offline listening. |
Generate Audiobook
Create audio versions of your own notes:
- Go to Note Edit and enable Audiobook visibility.
- Access the Audiobook page for your note.
- Click Generate to start audio creation.
- Wait for async processing (time depends on content length).
- Audio will be available once generation completes.
Credits Cost
Audiobook generation costs credits based on text length:
Credits required = Total text length ÷ 20
For example, a note with 10,000 characters costs approximately 500 credits.
MP3 Download Availability
| Note Type | Download Available |
|---|---|
| Your own notes | ✅ Always |
| Downloaded (cloned) notes | ✅ Always |
| Other's public notes | Depends on owner's settings |
Audio generation may take several minutes for long notes. You can navigate away and return later - the audio will be ready when processing completes.
PDF to Note
Purpose
Convert PDF files into notes automatically, with optional AI-powered features.
This feature works only with text-based PDFs or OCR-processed PDFs. To check compatibility, try selecting text in your PDF - if text can be highlighted, it will work.
Conversion Process
- Upload PDF file (maximum 30MB)
- Wait for PDF analysis
- Enter note name, description, and learning steps
- Choose conversion method and options
- Start conversion (async processing for AI methods)
- Review and edit the created note
Conversion Methods
| Method | Description |
|---|---|
| Page-by-Page | Each PDF page becomes a paper. Text content is extracted directly. |
| AI Masking | AI analyzes content and automatically adds masks to important keywords and concepts. |
| AI Flashcards | AI generates Q&A format flashcards from content. Front = question, Back = answer. |
Page Layout Options (Page-by-Page)
| Layout | Description | Example |
|---|---|---|
| Single | Each page becomes front only. | P1→Front, P2→Front, P3→Front |
| Front/Back | Odd pages become front, even pages become back. | P1→Front, P2→Back, P3→Front, P4→Back |
| Duplex | Alternating front/back from both ends. | P1→Front1, Pn→Back1, P2→Front2, Pn-1→Back2 |
AI Options
| Option | Range | Description |
|---|---|---|
| Masks per Page | 1-20 | Number of keywords to mask per page (AI Masking). |
| Cards per Page | 1-5 | Number of flashcards to generate per page (AI Flashcards). |
Usage Limits
| Limit | Free | Membership |
|---|---|---|
| PDF File Size | 30MB | 30MB To be increased later |
| Monthly Conversions | Limited | Extended quota |
| Characters per Page | 2,000 | 4,000 |
Uploaded PDF files are automatically deleted after conversion is complete. Temporary files older than 24 hours are cleaned up daily.
AI Learning Pattern Analysis
Purpose
Get AI-powered insights into your learning patterns, strengths, weaknesses, and personalized recommendations.
Basic Statistics (Always Available)
View your learning metrics without using AI credits:
| Metric | Description |
|---|---|
| Total Notes & Papers | Count of your notes (owned + subscribed) and total papers. |
| Total Study Sessions | Number of times you've studied. |
| Total Study Time | Cumulative time spent learning (hours/minutes/seconds). |
| 30-Day Chart | Daily study time over the last 30 days. |
| Difficulty Distribution | Breakdown of your difficulty ratings (Very Hard to Very Easy). |
Analysis Options
Customize what data the AI analyzes:
| Option | Values | Description |
|---|---|---|
| Period | 7 days, 30 days, 90 days, All time | Time range of learning data to analyze. |
| Note Selection | All notes, Specific notes | Analyze all notes or focus on selected ones. |
| Tag Filter | Any tag | Filter analysis to papers with specific tags. |
AI Analysis Results
When you run AI analysis, you receive:
| Section | Content |
|---|---|
| Summary | Overview of your learning activity during the selected period. |
| Patterns | Identified learning patterns, habits, and tendencies. |
| Strengths | Areas where you're performing well. |
| Weaknesses | Areas that need improvement. |
| Recommended Plan | Personalized study plan suggestions based on your data. |
| Overall Guide | Comprehensive learning strategy tailored to you. |
Permissions & Limits
Detailed breakdown of feature availability by user type and membership level.
Feature Access by User Type
Different user types have different levels of access to Memory Notes features.
| User Type | Available Features |
|---|---|
| Guest (Not Logged In) | Browse public free notes, view limited note details, use eBook Viewer for public free notes, listen to public audiobooks. |
| Registered User (Free) | Create/edit notes (up to 10), download (clone) public notes, subscribe to notes, track learning progress, view statistics, use basic AI features, generate audiobooks, AI PDF conversion (with credits). |
| Paid Members | All free features + unlimited notes, extended AI usage, PDF download distribution, Kakao notifications. |
| Note Owner | Full edit access to own notes, publish/sell options, generate audiobook, send subscriber notifications, view sales analytics. |
| Note Purchaser | Access paid note content as per owner's visibility settings (eBook Viewer, download, audiobook, PDF). |
Free vs Paid Membership Comparison
Detailed comparison of features and limits between Free and Paid membership.
Core Features
| Feature | Free | Membership |
|---|---|---|
| Owned Notes Limit | 10 notes | Unlimited |
| Characters per Paper | 2,000 characters | 4,000 characters |
| Paper List Display | Up to 200 per page | 500 or 1000 per page |
| Spaced Repetition | ✅ Full access | ✅ Full access |
| Learning Statistics | ✅ Full access | ✅ Full access |
| Note Publishing & Selling | ✅ Available | ✅ Available |
| PDF Download Distribution | ❌ Not available | ✅ Available |
| Move Papers Between Notes | ❌ Not available | ✅ Available |
AI Feature Credit System
All AI features consume AI credits. Both free and membership users use the same credit system.
| AI Feature | Credit Cost | Description |
|---|---|---|
| Audiobook Generation | 250 credits / 1,000 characters | Convert notes to audio using TTS |
| AI Learning Pattern Analysis | 1,000 credits / analysis | Comprehensive learning insights and recommendations |
| PDF to Note: Page-by-Page | Free (no credits) | Basic PDF conversion without AI |
| PDF to Note: AI Masking | 200 credits / page | AI auto-applies masks to keywords (1-20 per page) |
| PDF to Note: AI Flashcards | 300 credits / page | AI generates Q&A flashcards (1-5 per page) |
AI credits can be purchased or obtained through membership. 10 credits = 1 KRW. Membership plans include monthly AI credit bonuses.
Points/Credits System
Memory Notes uses a points/Credits system for certain features. Points can be earned through note sales or purchased separately.
Audiobook Generation
Audiobook generation consumes AI credits for all users (including membership).
Credits required = Total text length ÷ 4 (250 credits per 1,000 characters)
Example: A note with 10,000 characters costs approximately 2,500 credits.
Subscriber Notifications
When you update your published note, you can send notifications to subscribers. This feature costs points based on the number of subscribers.
- Cost varies by number of subscribers
- Points are deducted when notification is sent
- Notification includes update message and link to note
Note Sales & Earnings
When you sell a note, earnings are credited to your account as points.
| Action | Description |
|---|---|
| Sale Completed | Earnings are credited when the buyer first views the purchased content. |
| Earnings Distribution | Points are automatically added to your balance and can be used for other features. |
| Sales Dashboard | Track your sales and earnings in the Creator Dashboard. |
Reminder Channel Availability
Configure how you receive notifications when papers are due for review.
| Channel | Description | Free | Membership |
|---|---|---|---|
| Web/PWA Push | Browser and Progressive Web App notifications on desktop and mobile. | ✅ | ✅ |
| Email notifications sent to your registered email address. | ✅ | ✅ | |
| KakaoTalk | KakaoTalk message notifications (Korean service). | ❌ | ✅ |
KakaoTalk notifications are only available in Korean language and require account linking in User Options.
Important Policies
Content & Ownership
- Downloaded Notes: Cloned notes become your own copy for personal use. They cannot be re-published, sold, or have audiobooks generated for public distribution.
- Paid Note Access: Purchase required to access paid note content, unless the owner has enabled URL sharing.
- Copyright Protection: eBook Viewer has copy protection (text selection disabled) for notes you don't own.
Usage Limits
- Note Limit: Free users are limited to 10 owned notes (including downloads). Delete existing notes to create new ones.
- AI Limits: Daily/monthly AI feature limits reset automatically. Check usage on each feature page.
- PDF Upload: Maximum 30MB file size. Only text-based or OCR-processed PDFs are supported.
- Image Upload: Maximum 7MB per image. Supported formats: JPG, PNG, GIF, WebP.
Reporting & Safety
- Report Function: Use the Report button in eBook Viewer to report inappropriate content. Our team reviews all reports.
- Content Guidelines: Published notes must comply with our content guidelines. Violations may result in note removal.
Want unlimited notes, more AI features, and advanced features? Consider upgrading to paid membership for the best learning experience.
Frequently Asked Questions
Common questions and answers about Memory Notes.
General Questions
Go to My Notes, click "Create New Note", enter a title and description, then add papers using the Paper Edit screen. See the Quick Start guide above for detailed steps.
Learning Steps define the spaced repetition schedule for your reviews. For example, "1d 4d 7d 14d" means papers will be reviewed after 1 day, then 4 days, 7 days, and 14 days. The actual interval depends on your difficulty rating.
Asterisk steps have special "infinite repeat" behavior. Instead of resetting to step 1 on "Very Hard", you only drop one step. And "Hard/Normal/Easy" keep you at the same step for repeated practice.
You have several options: 1) Enable URL Sharing for direct link access, 2) Make it Public for marketplace visibility, 3) Enable Note Download to let others clone it, or 4) Sell it by setting a price.
Review mode shows only papers that are due for review and tracks your progress. Free learning lets you browse all papers freely without affecting your learning progress.
Select text in the paper editor and click the mask button (or use keyboard shortcut). During study, masks will be hidden and can be revealed one by one, helping you test your recall.
The note owner may have disabled the Download option. Also, free users have a limit of 10 owned notes. Cloned notes from downloads count toward this limit.
AI Optimize analyzes your note content and learning history to suggest optimal Learning Steps. Enter your learning goals, available time, and preferred difficulty, and the AI will recommend a personalized schedule.
Currently, only PDF files are supported for conversion. You can choose per-page conversion (free) or AI-powered methods like AI Masking and AI Flashcards.
Free users have a 2,000 character limit per paper, while Pro users have 4,000. This ensures optimal performance and encourages concise content.
You can set reminders based on learning progress or overdue paper count. Notifications can be sent via Web, App, Email, or KakaoTalk (Pro only). Configure in User Options.
Graduation means the paper has completed all learning steps. Graduated papers continue to be reviewed, but at extended intervals that grow exponentially (last step × 2.5^n).
In the eBook Viewer, use the Report function. Select a reason and optionally provide details. Our team will review the report and take appropriate action.
Yes, downloaded (cloned) notes become your own copy and can be edited freely. However, you cannot re-publish or sell cloned notes.
In Note Edit, select papers in the list and use the "Move to another note" action. This feature is available for Paid membership only and is restricted for cloned notes.
It's an AI-powered feature that analyzes your study history to identify patterns, strengths, weaknesses, and provides personalized learning recommendations. Free users get 5 analyses/month, Pro users get 30.
Go to My Notes, switch to the Subscribed Notes tab, find the note, and click the Unsubscribe button.
Copy protection is enabled for notes you don't own to protect creator content. If you need to reference content, consider downloading the note (if allowed) or taking your own notes.
Free users can generate PDFs up to 30 pages. Membership users can generate PDFs with no page limit, processed in the background with notification upon completion.
Points(Credits) & Payment
Points are the in-app currency used for features like audiobook generation and subscriber notifications. You can earn points by selling notes - when a buyer purchases your note, the earnings are credited to your point balance.
The cost is calculated as: Total text length ÷ 20. For example, a note with 10,000 characters costs approximately 500 credits.
If audiobook generation fails for any reason, the credits that were deducted are automatically refunded to your account. You can try generating again without losing credits.
The cost varies based on the number of subscribers to your note. Points are deducted when the notification is sent. The exact cost is displayed before you confirm sending.
Yes, points(credits) can be purchased separately. Visit your account page or contact support for available point packages and pricing options.
Sales & Earnings
In Note Edit, enable "Public" and set a price. Your note will appear in the marketplace. You can also set discounts and control which features (eBook, download, audiobook, PDF) are available to buyers.
Earnings are credited to your point balance when the buyer first views or downloads the purchased content. You'll receive a notification when a sale is completed.
Notes with sales history cannot be deleted to protect buyer access. If you need to delete a note due to updates or renewal, please contact the administrator for assistance.
Visit the Creator Dashboard in My Page to view your sales history, earnings, download counts, and other analytics for your published notes.
Yes, in Note Edit you can set both a regular price and a discounted sale price. The sale price will be prominently displayed to buyers with the original price shown as a strikethrough.
PWA & Offline Mode
Yes! Memory Notes supports PWA (Progressive Web App). You can install it on your device and continue editing papers offline. Changes are stored locally in your browser and will sync automatically when you're back online.
When you're offline, your edits are saved to IndexedDB in your browser. When you reconnect, a sync modal will appear showing all pending changes. You can sync individual items, sync all at once, or discard changes.
If you edited the same paper both offline and online, the system will attempt to merge changes. In case of conflicts, the most recent version (based on timestamp) is typically kept. You can review changes before syncing.
On supported browsers (Chrome, Edge, Safari), look for the "Install" or "Add to Home Screen" option in your browser menu or address bar. Once installed, you can access Memory Notes like a native app.
If you couldn't find the answer you were looking for, please contact our support team or use the feedback feature in the app.
Update Log
Recent updates and changes to Memory Notes.
Documentation & User Experience:
- Comprehensive documentation page with sidebar navigation and search
- Expanded FAQ with 33 questions across 4 categories
- Detailed permissions and limits reference
- Improved mobile responsive design
PWA & Offline Improvements:
- Offline paper editing with IndexedDB storage
- Sync modal for reviewing and syncing offline changes
- Batch sync and individual item sync options
- Auto-save drafts to localStorage every minute
AI Features Expansion:
- AI Learning Pattern Analysis with comprehensive insights
- AI Optimize for personalized learning step recommendations
- Different AI models for Free (Standard) vs Pro (Advanced) users
- Usage limits: Free 2/day & 5/month, Pro 99/day & 30/month
PDF to Note Enhancements:
- AI Masking: Auto-apply masks to 1-20 keywords per page
- AI Flashcards: Generate 1-5 Q&A cards per page
- Page layout options: Single, Front/Back, Duplex
- Async processing for large PDF files
Audiobook & Marketplace:
- TTS audiobook generation with Korean/English auto-detection
- MP3 download for Paid members and note owners
- Credits-based audiobook generation
- Unified note search with sorting, filtering, and price range
Sales & Creator Features:
- Note selling with customizable pricing and discounts
- Creator Dashboard for sales analytics
- Subscriber notification system with point costs
- WooCommerce integration for payments
Learning Experience:
- Asterisk (*) infinite repeat steps for practice mode
- Tag-based learning and review modes
- Daily new/total paper limits (per user and per note)
- Fixed review order option
Paper Editor Improvements:
- Mask (blank) tool with keyboard shortcuts
- Memo tooltip feature for additional explanations
- Image paste, drag & drop support
- Word/HWP paste with auto-cleanup
- YouTube URL auto-embed
Major Version Release:
- Complete UI redesign with modern interface
- WPML multilingual support for notes
- eBook Viewer with dual-page mode
- Learning statistics with chart visualizations
- Reminder system: Web/PWA, Email, KakaoTalk
- Paid membership tier with extended limits
Foundation Release:
- Core spaced repetition learning system
- Note and paper management
- Basic PDF to Note conversion
- Flashcard front/back structure
- Excel/CSV bulk paper import
You are using Memory Notes version 2.0.8.2. Subscribe to note updates to receive notifications when new features are released.
