This test is motivated by Raven's progressive matrices that got their name according to their creator John C. Raven, who developed them in 1936 as a non-verbal test of abstract thinking.It is a ‘culture fair’ multiple choice IQ test, that measures your fluid intelligence (Gf) – your reasoning and problem solving ability. Fluid intelligence is a core component of (g) – your general intelligence.This test tests the understanding of the complexity of patterns, the ability to store and retrieve information. It provides insight into the ability to observe, solve problems and learn.It is recommended to contact specialists if you really need to determine your IQ accuratelly. Those specialists may consider more aspects that influences your overall intelligence.The test consists of 54 questions which in turn are gradually more complex. Respondents choose geometric shapes to properly complete larger images.The result of the test is determined by the number of correct answers and the age of the respondent. However, the final score is not linearly related to the number of correct answers.The evaluation of the test is based on a study of a large sample of anonymous results of users of the app in different age categories and is continuously refined.The results are distributed on the so-called Gaussian curve into several percentile intervals on an overall scale from 0 to 160 intelligence quotient points, with the majority of the population according to the Gaussian curve (i.e. over 50%) corresponds to IQ values between 90 and 110.•is its non-verbal nature, which avoids cultural and linguistic discrepancies.•is that repeating it may improve the result.