*Together with iOS, the series has exceeded 2,000,000 downloads! !
An app that gained overwhelming support among CAB learning apps on iOS is now available on android! !
*Completely free and with easy-to-understand detailed explanations and detailed explanations for all questions!
* Enhanced functions such as automatic collection of weak problems! Perfect for last-minute measures!
* Ideal for learning in a short time such as a gap time with one question and one answer.

In this app, we have independently analyzed past CAB exams and created questions that cover the range of questions centered on frequently occurring question formats.

[Characteristics of this application]
There are three modes: question mode, quiz mode, and question list mode, so you can study according to the situation.

In addition, the question format can be selected from four types: (1) all questions, (2) only questions that have not been asked, (3) only weak questions, and (4) only checked questions, so you can take measures efficiently.　

[Description of each mode]
■ "Problem" mode
Solve the problem by selecting from 5 of "Four Arithmetic Operations", "Four Arithmetic Reverse Calculations", "Laws", "Instruction Tables", and "Cryptography".
Wrong questions in this mode are automatically checked and can be solved again with "checked questions" in the question format. (You can also manually check the questions you answered correctly.)
After solving all the problems, you can review with "Confirm the wrong problem". (Click "v" to check your answer.)

■ "Quiz" mode
50 to 60 questions will be randomly given from the range of questions for CAB and Web-CAB among "four arithmetic operations)", "four arithmetic inverse calculations", "laws", "instruction tables", and "ciphers".
The best grades of the day are recorded and can be checked with the "Grade" button, so you can learn while feeling your daily growth.

■ "Problem list" mode
You can check the questions to be asked in a list format.

■ "Settings" mode
・ By setting the test date, the number of days until the test date will be displayed, making it possible to study systematically.
・It has a reminder function and can be notified by setting the time and day of the week, which contributes to continuous learning.