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Introducing Teacher Questi

"Got a question? 
Want to talk to me about it?"

Anser

Kedu

"Need help with
complex logical reasoning?"

Questi

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Analyzing "{fileName}"

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Untitled

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Share your library

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Pick Problem Image

Select the pages to change and enter your request. Credits are charged by selected page count.

Template AI edit

Changing the base template will discard all of your edits. Continue?

Change the base template?

Gray areas are filled by AI. Click a block to select it and drag to move it (drop on a block's left/right edge to place them side by side). Edit text via the 'Edit text' button in the toolbar, and add text, boxes, lines, and images from the bottom toolbar.

My templates

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Shall we load problems 
from the library?

Shall we select this textbook?

Select the textbook pages
you want to create similar problems from

Select the variation type, number of 
similar problems, and grade level

Select the recognized problems 
and generate similar problems

Try with a sample

Upload problem file

Review the split results and generate only the problems you need.

Recognizing problems...

Attach the solution that matches the problem selected on the left.

Match solutions

After selecting, upload the matching solution in the right panel.

Select a problem to attach solutions.

Upload more solutions

Select problems to generate

Completed similar problems will appear automatically.

Generated problems

GeoGebra Viewer

{resolved} answers parsed out of {total} problems

Quick answer sheet

This is a {variantLabel} similar problem based on {sourceLabel}.

{count} similar problems are generated from this original.

Original problems

Waiting for generated result

{label} explanation

Solution images (optional)

Upload solution file

Loading the results.

Lecture videos by problem

Solution Video

Total {total} problems · {done} done × {credit}C = {charged}C

Estimated teaching time

Generating teacher workbook

Page {page} · No. {problem}

Teacher solution PDF

Step-by-step teacher solution

Student explanation tips

Upload book pages for a teacher guide

Experience the whole flow from generation to results.

New to similar problem generation?

AI request

Edit tools

Generation failed.

The updated page will load automatically when complete.

Editing the problem

The original image is kept. You can regenerate only the failed page.

Page {page} failed

Generating page {page}

The workbook page will appear automatically when complete.

Regenerating page {page}

{count} problems are staged temporarily. Press Save to replace them all at once.

Save to apply problem replacements

Creating the print PDF

My DB problem

Page {page} · Question {problem}

Click a problem on the page to use AI editing and regeneration.

Select a problem

Problem selected

Name

Guidelines

Clear canvas

Copy to clipboard

Insert into editor

Handwriting Input

Creates handwritten solution notes next to the problem.

High quality

Creates a template-based handwritten solution explanation.

Basic

Standard

Generation type

Review the sample recognition result, then open the result preview.

No resources.

LaTeX Guide

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Plan Change Notice

Additional Features at a Glance

Subscription Guide

Monthly Base Credits

Enter your question about the explanation.

Original image

Visualization of the problem as understood by AI

Try changing folder/tab/search conditions
or create a new DB.

No items match your conditions

No public problems match your current conditions.

No public DB problems to show.

Problems or folders you share will appear here.

No shared-by-me problems.

Problems or folders shared by others will appear here.

No shared-with-me problems.

Title

Locked problem

Untitled exam

Choose candidates to create your own exam.

You have {count} exam candidates!

{itemCount} candidates · {selectedCount} selected

Create exam

You can register problems from the My DB card menu.

No community problems yet.

You can register your exams from the exam history page.

No community books yet.

Other users can save this problem to their DB for free.

Other users can save this exam and its problems for free.

Other users can save this problem to their DB after paying the credits you set.

Other users can save this exam and its problems after paying the credits you set.

Free items can be copied immediately. Paid items charge the buyer and credit the seller when purchased.

Choose whether other users can copy this problem for free or by paying credits.

Choose whether other users can copy this exam and its problems for free or by paying credits.

Register exam to Community DB

Register to Community DB

Subject

Copy problems shared by other users into your DB for free or with credits.

Community DB

After upload, review the segmented problems and choose which ones to add.

Convert the selected pages into images and add them to the upload list.

Select PDF pages

When this finishes, you can choose the problems to add on this page.

Select Segmented Problems

This appears in public DB search and filters. Leave unknown values blank.

Source information (optional)

Add New Problems

Title (Optional)

e.g.) June 2025 Evaluation Mock Exam

Create folder

This will delete the selected problem from My DB. You can’t undo this action.

You can’t undo this action. Continue?

Delete this problem?

Delete problems in this folder from DB and queue search index cleanup.

Delete "{folderName}". Choose how to handle {count} included problem(s).

Keep problems and move them out of the folder.

Delete folder

Problem {number}

File title

View Original Problem

Problem title

Enter problem title.

View Related Problems ({count})

The solution is being prepared. You can view it on this problem when it is ready.

Problem detail

Choose a document type and title to create an editable draft.

Create exam/workbook

Upload original problems, generate similar questions, and manage your own problem sets.

No exams or workbooks yet.

Use answer sheets to collect grading statistics.

Automatically add analyzed DB problems by count.

Generation settings

Random generation

Workbook creation from DB problems is coming soon.

Exam title

e.g. 2025 June mock exam

Enter an exam title.

Select a format to download the question sheet/solution sheet (or original file).

	Free	Basic	Plus	Super	Premium
Questi per minute	-	84	84	84	84
Kedu per minute	-	60	60	60	60
Anser per minute	-	10	10	10	10
My Library per page	-	6	6	6	6
My Lectures per minute	6	6	6	6	6
Document Convert per page	209	176	165	154	143
Similar Math Questions per question	1100	1050	1000	950	900
Advanced Math Similar Questions per question	1625	1575	1525	1475	1425
Similar English Questions per question	450	400	350	300	250
Advanced English Similar Questions per question	850	800	750	700	650
Similar Korean Questions per question	450	400	350	300	250
Advanced Korean Similar Questions per question	850	800	750	700	650
Korean Syntactic Analysis per use	154	121	110	99	88
English Syntactic Analysis per use	154	121	110	99	88
Exam Analysis per use	2200	1650	1540	1430	1320
Exam Similarity Analysis per use	1100	1100	1100	1100	1100
Cram File Upload per use	550	550	550	550	550
Cram Question Generation per question	33	33	33	33	33
STEAM Problem per question	330	330	330	330	330
English Vocabulary Book per word	330	330	330	330	330
Essay Feedback per use	5500	5500	5500	5500	5500
Create Cartoon - Standard per episode	275	275	275	275	275
Create Cartoon - High Quality per episode	1100	1100	1100	1100	1100
Edit Cartoon - Standard per episode	275	275	275	275	275
Edit Cartoon - High Quality per episode	1100	1100	1100	1100	1100
Image Explanation per use	143	132	121	110	99
Handwriting Explanation - Basic per use	-	-	-	-	-
Handwriting Explanation per use	396	374	352	330	308
Doodle/Handwriting Removal per image	1000	1000	1000	1000	1000
Question Review per question	193	176	165	154	143

Plan

BasicKRW/month9,900₩

Basic

PlusKRW/month19,900₩

Plus

SuperKRW/month39,900₩

Super

PremiumKRW/month69,900₩

Premium

Additional Features at a Glance

Q&A

Q1. What are Questi, Flash, and Answer?

Q2. What is the usage time allocated by subscription plan?

Q3. What is the “My Library” feature in BookChat?

Q4. Is there a difference between using BookChat on the web and the downloaded version?

Q5. How can I use additional features (document conversion, problem generation, etc.)?

Subscription Guide