Is SecuCBT free to use?

Yes. Core features—question entry, CBT practice, wrong-answer notes, and study stats—are free. AI features like AI explanations and OCR question entry work without extra payment when you register your own Gemini API key on the settings page, using Google’s free quota.

Can I prepare for exams other than Information Security Engineer?

Yes. SecuCBT is a personal question-bank approach where users register their own questions, so beyond the InfoSec written/practical exams you can register questions for any exam—certifications, civil-service exams, elementary/middle/high school tests, CSAT and college entrance—by subject and study them repeatedly with CBT and quizzes.

Are past exam questions provided by default?

SecuCBT does not provide question content directly. It is a study tool where you build your own question bank by typing questions in or reading photos and documents via OCR. Registered questions can be searched by subject, difficulty, and keyword and solved repeatedly.

May I register questions from textbooks or made by others?

SecuCBT is a personal study tool for private, personal study use. Registered questions are not shared or transmitted to other users thanks to Row Level Security. However, copying and registering others’ works—textbooks, workbooks, past exam questions—without permission may infringe rights, so please register only questions you created yourself or materials you may legitimately use. Passages containing third-party works such as poems, novels, or photos may carry separate rights, so take care. The rights and responsibility for registered content rest with the user who registered it.

How do I use the AI quiz explanations and OCR features?

Register a personal Gemini API key on the settings page to use AI explanations (answer-choice analysis, key concepts, reasons for wrong answers) and OCR that extracts questions from images and documents. Because the server does not bear AI costs in this open model, you can use them freely within your own free quota.

Are the questions and wrong-answer data I register safe?

With Supabase Row Level Security (RLS) policies, data is fully isolated per user account, so the questions and wrong-answer records you register are not exposed to or shared with other users. You can also back up all your data to JSON anytime and restore it as-is on another device.

Can I use it on mobile?

It is a web-based service you can use right away in your phone’s browser with no separate app install. With bottom-tab navigation and mobile-tuned image sizes, you can lightly solve questions on the go.

From Information Security Engineer to certifications and civil-service prep

Study CBT and wrong-answer notes with questions you build yourself

SecuCBT is a web-based personal study tool to solve and review your own registered information-security, certification, elementary/middle/high school, CSAT, college-entrance, and civil-service exam questions in CBT mode. Through per-subject practice, repeated quiz review, wrong-answer notes, and study stats, you can steadily manage weak points up to exam day. SecuCBT does not provide question content such as past exams; every question is registered and managed by you for your own study. AI features such as AI quiz explanations and OCR question entry are available only when you register a personal Gemini API key on the settings page.

Start for free View pricing

Sample study dashboard

Spot weak subjects fast

System Security82%

Network Security64%

Application Security48%

Review today

24 questions

Wrong-answer focus

7 questions

What sets it apart from other CBT apps?

SecuCBT's core differentiators

It is not just a tool that serves up questions. From the safety of your data, zero AI cost burden, automatic weakness tracking, to full data ownership—the design embeds the values that long-term test-takers truly need.

100% private study library

With Row Level Security (RLS) policies, the questions and wrong-answer data you register are never exposed to or shared with other users. A fully isolated study space that is yours alone.

AI that stays free for life

Rather than the server bearing AI costs, you register your own Gemini API key and use AI explanations and OCR within the free quota—an open model. Enjoy AI features with no extra payment.

Relentlessly target your weak spots

Forgetting-curve sorting and the Weak/Review modes automatically pick the types you miss often. No need to build a separate wrong-answer note—your study data tracks weaknesses for you.

You own your data

Download a full JSON backup anytime and restore it as-is on another device. Manage your learning assets directly, without being locked into the service.

Three steps are all it takes

With one simple flow—register, solve, review—you can keep narrowing your weak points right up to the night before the exam.

Register questions

Type them in directly, or read photos and documents via OCR to quickly fill your own question bank.

Solve in CBT mode

Pick your scope with subject, difficulty, and sort filters, and practice repeatedly in CBT mode just like a real exam.

Review with wrong-answers & AI

Missed questions pile up automatically; focus only on weak areas using forgetting-curve sorting and AI explanations.

Prepare for exams more smartly

Why is SecuCBT good for learners?

SecuCBT is not a simple question list but a personal study tool that ties together solving your own registered exam questions in CBT, reviewing missed ones, and understanding them with AI explanations. It is a public introduction page tailored to users who want to steadily manage certification prep, civil-service prep, and CSAT and school exam quiz study.

Repeat-study your own questions in one place

Register information-security, certification, school, CSAT, and civil-service exam questions yourself and solve them repeatedly like a per-subject quiz. The service does not supply question content; users manage it directly.

Wrong-answer notes that build themselves

Without separately organizing missed questions and review history, your study data accumulates so you can quickly identify weak subjects and frequently missed question types.

Cut solo-study time with AI explanations

Using AI explanations, you can quickly organize answer-choice analysis, key concepts, and reasons for wrong answers—boosting certification prep and quiz-review efficiency.

SecuCBT key features

For both search engines and users to understand easily, this public page organizes the core SecuCBT features needed for certification prep, CBT practice, exam question solving, quizzes, AI explanations, and wrong-answer management.

CBT exam practice

Solve information-security, certification, elementary/middle/high school, college-entrance, and civil-service exam questions in CBT mode.

AI quizzes & explanations

Register a Gemini API key to organize tough concepts, answer rationale, and reasons for wrong answers through AI explanations and AI-driven quiz flows.

OCR question entry

Extract text from your own study materials or question images to build your personal question bank. Use it within the scope of private, personal study. Available only when you have registered your own Gemini API key on the settings page.

Wrong-answer & study stats

Track missed questions, bookmarks, and review progress to spot weak subjects for school, college-entrance, certification, and civil-service exams.

Login-based private study space

Questions, answers, review history, and inquiries are kept separate per logged-in user account.

Search & filter presets

Quickly find questions by subject, difficulty, and keyword, and save frequently used search conditions as presets you can recall with a single click.

4 quiz modes

Solve the same question bank differently with Normal, Random, Review, and Weak-point modes. The wrong-answer review mode even tracks rounds to drill your weak spots to the end.

Forgetting-curve review sorting

Based on the Ebbinghaus forgetting curve, wrong-answer rate and elapsed time are weighted so the questions you most need to revisit rise to the top automatically.

Study bookmarks & resume

Save your last study position to resume straight from the dashboard, and an in-progress quiz session is restored as-is within 72 hours.

Handwriting over images

Write your working directly on question images with a pen and leave drawn notes, so you can solve practical and essay questions by hand like on paper.

One-click backup & restore

Export your carefully collected questions and wrong-answer data to a JSON file—choosing which subjects to include—and restore it safely on a new device in a second.

Mobile optimized

With bottom-tab navigation and mobile-tuned image sizes, you can lightly solve questions on your phone during commutes.

Topics it covers

From information-security, certification, and civil-service exams to elementary, middle, and high school assessments, CSAT, and college entrance, it is designed so you can search and repeatedly study your own registered exam questions and quizzes by subject. The topics below are examples of learning areas users register and manage themselves; SecuCBT does not provide the question content.

Information Security Engineer

InfoSec CBT
InfoSec written exam
InfoSec practical exam
InfoSec wrong-answer notes
InfoSec AI explanations

Certifications & civil service

Certification CBT
Certification past questions
Certification quizzes
Certification exam prep
Civil-service exam prep

School, CSAT & college entrance

Elementary
Middle school
High school
CSAT
College entrance

Study features

CBT practice
AI quizzes
AI explanations
Wrong-answer notes
Forgetting-curve review
OCR question entry
Mobile CBT

Who it suits

A personal study tool tailored to learners who want to register their own school, CSAT, college-entrance, civil-service, Information Security Engineer, and various certification exam scope, solve it repeatedly, recheck missed questions, and manage even questions they created themselves—all in one study space. Ideal for anyone who wants to prepare efficiently.

Learners who want to register elementary/middle/high school exam questions and solve them like a quiz
Test-takers who want to repeatedly study CSAT and college-entrance prep questions in CBT mode
Users who want to register civil-service prep questions and wrong-answer notes and manage them in one place
Users who want to build and repeatedly study their own questions and CBT quizzes for various certifications
Test-takers who want to solve their own registered InfoSec written questions by subject
Users who want to organize InfoSec practical prep questions and explanations
Users who want to build a personal question bank with AI quiz explanations and OCR (personal Gemini API key required)

Frequently asked questions

The most common questions about SecuCBT's pricing, supported exam scope, AI features, and data security.

Is SecuCBT free to use?: Yes. Core features—question entry, CBT practice, wrong-answer notes, and study stats—are free. AI features like AI explanations and OCR question entry work without extra payment when you register your own Gemini API key on the settings page, using Google’s free quota.
Can I prepare for exams other than Information Security Engineer?: Yes. SecuCBT is a personal question-bank approach where users register their own questions, so beyond the InfoSec written/practical exams you can register questions for any exam—certifications, civil-service exams, elementary/middle/high school tests, CSAT and college entrance—by subject and study them repeatedly with CBT and quizzes.
Are past exam questions provided by default?: SecuCBT does not provide question content directly. It is a study tool where you build your own question bank by typing questions in or reading photos and documents via OCR. Registered questions can be searched by subject, difficulty, and keyword and solved repeatedly.
May I register questions from textbooks or made by others?: SecuCBT is a personal study tool for private, personal study use. Registered questions are not shared or transmitted to other users thanks to Row Level Security. However, copying and registering others’ works—textbooks, workbooks, past exam questions—without permission may infringe rights, so please register only questions you created yourself or materials you may legitimately use. Passages containing third-party works such as poems, novels, or photos may carry separate rights, so take care. The rights and responsibility for registered content rest with the user who registered it.
How do I use the AI quiz explanations and OCR features?: Register a personal Gemini API key on the settings page to use AI explanations (answer-choice analysis, key concepts, reasons for wrong answers) and OCR that extracts questions from images and documents. Because the server does not bear AI costs in this open model, you can use them freely within your own free quota.
Are the questions and wrong-answer data I register safe?: With Supabase Row Level Security (RLS) policies, data is fully isolated per user account, so the questions and wrong-answer records you register are not exposed to or shared with other users. You can also back up all your data to JSON anytime and restore it as-is on another device.
Can I use it on mobile?: It is a web-based service you can use right away in your phone’s browser with no separate app install. With bottom-tab navigation and mobile-tuned image sizes, you can lightly solve questions on the go.

Copyright notice: SecuCBT is a personal study tool that does not provide question content such as past exams. Every question is registered and managed by the user for their own study, and the rights and responsibility for registered content rest with the user who registered it. Do not copy or register others' works—textbooks, workbooks, past exam questions—without permission. Exam names such as Information Security Engineer and CSAT are used to describe study topics and do not imply any official partnership with the respective administering bodies.