ISSB Test Preparation is an android application for the preparation of the ISSB test. This test is to be taken by all the candidates, who wish to join the Pakistan Army, Pakistan Navy, or the Pakistan Airforce. There is no specific rule for the age of the candidates, but it should be within the range of 18 to 21 years old. The main purpose of this test is to determine the candidates' basic knowledge of the subject.

The app contains a complete list of all the topics to be covered in the test. Each topic is divided into sub-topics, which are arranged in a random order. The subtopic is the building block of the topic. It contains the questions to be asked in the test. The questions are arranged in a random order, and there is no time limit for the answer. The candidates are required to answer all the questions in the given time.

There is a scoring system in the test. The candidates are given a score based on the answers they give to the questions. There is a separate scoring for the questions and answers. The subtopic scores are added to the topic score, and the overall score is used to determine the candidates' ranking. The test is based on a random selection of topics, and the topics are arranged in a random order.

The candidates are required to mark their preference in the test. There is a separate marking for the questions and answers. The candidates are required to select their first choice topic, and if they change their mind, they are allowed to change the topic.