The application consists of two parts, the free iq test itself and the exercise part (mind teasers) to boost your iq score.
Iq test app contains over 100 free brain teasers in total!

The free IQ test consists of 20 questions that you get at random (out of 25), and the time to answer to them is 45 minutes. If you don't know the answer to the question you can skip it and return to it later. When you finish the IQ test you will get your IQ result and find out in which category you are.