Looking for free iq challenge book apps and games? 19 of our 238+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
Compare top Iq Challenge Book Apps & Games (October 2026)
Assess your intelligence level with this application that provides an IQ score based on your answers to a series of questions. It categorizes your score according to a standard IQ scale, ranging from genius to feeble-mindedness. Test your limits and discover your intelligence quotient.
Engage in a free IQ test and brain-training exercises designed to boost cognitive skills. Scientifically developed, this app offers various tasks to improve processing speed, memory, and logical thinking. Compare your scores with friends and track your progress.
Calculate your intelligence quotient with this app. Perform various tests, including a time-trial mode, and share them with family and friends to see who is the most intelligent. Create multiple user profiles to track progress and compare results.
What are the best iq challenge book apps & games for iPhone?
IQ Challenge Book tops our iq challenge book apps & games ranking as of October 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Are there free iq challenge book apps & games for iPhone?
Yes — 19 of the top iq challenge book apps & games we rank are free to download, including IQ Challenge Book and IQ Test Brain Training Riddles.
Does IQ Challenge Book have ads or in-app purchases?
IQ Challenge Book has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
How many iq challenge book apps & games are on the App Store?
We track 238+ iq challenge book apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.