Its main service is a comprehensive test based on the four MBTI preference pairs: Extraversion and Introversion, Sensing and Intuition, Thinking and Feeling, and Judging and Perceiving. The full questionnaire contains 160 statements, with responses recorded on a seven-point agreement scale. Questions consider preferences across everyday life, work or study, time with friends, and stressful situations.

Users can adjust how many questions appear on each page, keep or randomize the question order, resume saved progress, or clear it. After completing the assessment, visitors can view their personality result and receive an individualized interpretation intended to support self-exploration and consideration of career fit. The site also promotes a shorter, 30-question option for quickly identifying a likely type among the 16 personality categories.

The results are presented for learning and personal reflection, rather than as a definitive evaluation