Best Iq Challenge Book Apps & Games

181+ iOS apps & games curated and reviewed

4.2 avg rating
19 free apps & games
Updated July 2026

Looking for free iq challenge book apps and games? 19 of our 181+ 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 (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1IQ Challenge BookIQ Challenge BookFree5.0★ (1)NoNoMay 2026
2IQ: how SMART am I?IQ: how SMART am I?Free2.3★ (48K)NoNoJul 2026
3The IQ Test : Lite EditionThe IQ Test : Lite EditionFree4.5★ (119)NoYesJul 2026
4IQ Test Brain Training RiddlesIQ Test Brain Training RiddlesFree4.4★ (8K)NoYesJul 2026
5Only 1% Challenges:Tricky GameOnly 1% Challenges:Tricky GameFree4.4★ (8.2K)YesYesJul 2026
6BrainGain - IQ Brain TrainingBrainGain - IQ Brain TrainingFree4.7★ (22K)NoYesJul 2026
7IQ Boost: Brain Trainer, GamesIQ Boost: Brain Trainer, GamesFree4.4★ (4.7K)NoYesJul 2026
8IQ Masters: Brain Games, TestsIQ Masters: Brain Games, TestsFree4.6★ (64K)NoYesJul 2026

Top Picks for Iq Challenge Book

IQ Challenge Book#1

IQ Challenge Book by Adrian Minca

Editor's Choice
🎮 Games
5.0(1 ratings)
Free
IQ Challenge Book screenshot 1
IQ Challenge Book screenshot 2
IQ Challenge Book screenshot 3
IQ Challenge Book screenshot 4

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.

IQ: how SMART am I?#2

IQ: how SMART am I? by Indigo Penguin Limited

Strong Contender
🔧 Utilities
2.3😞(48K ratings)
Free
IQ: how SMART am I? screenshot 1

Test your intelligence with a variety of challenges. Discover your cognitive abilities and see how you measure up. This app offers a fun way to assess your mental acuity.

What We Love

  • 🤡 Funny
  • 🎉 Fun game

Room to Improve

  • 🤔 Inaccurate
  • 🤯 Terrible
  • 🙄 Not great
The IQ Test : Lite Edition#3

The IQ Test : Lite Edition by Webrich Software Limited

1400+ Questions, 13 Topics
Worth Considering
📚 Education
4.5😞(119 ratings)
FreeIn-App Purchases
The IQ Test : Lite Edition screenshot 1
The IQ Test : Lite Edition screenshot 2
The IQ Test : Lite Edition screenshot 3
The IQ Test : Lite Edition screenshot 4
The IQ Test : Lite Edition screenshot 5
The IQ Test : Lite Edition screenshot 6

Assess and improve your cognitive abilities with a comprehensive IQ test. It measures general intelligence and performance across 13 specific areas, providing detailed results and progress tracking.

What We Love

  • 👍 Great customer service
  • 👍 Helps with math and problem solving
  • 👍 Challenging and engaging
  • 👍 Keeps brain active

Room to Improve

  • 🔒 Locked content requires payment
  • 🐛 Inconsistent scoring and incorrect answers
  • 🐛 Poorly worded and ambiguous questions

More Iq Challenge Book apps to explore

4
IQ Test Brain Training Riddles
IQ Test Brain Training Riddles
IQ Test Brain Training Riddles
Improve your brain power
Free

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.

Free IQ testBrain booster tasksExercise mode with solutions
🎮 Games
(8K)
free with in-app purchases
5
Only 1% Challenges:Tricky Game
Only 1% Challenges:Tricky Game
Only 1% Challenges:Tricky Game
Test your mind and skills!
Free

Engage in a variety of competitive challenges designed to test your cognitive abilities, including reflexes, focus, and IQ. Compete globally, share results with friends, and strive for the top 1%. Offers daily challenges and various game modes for endless fun.

Competitive challengesCognitive skill testingGlobal leaderboards
🎮 Games
(8.2K)
free with in-app purchases
6
BrainGain - IQ Brain Training
BrainGain - IQ Brain Training
BrainGain - IQ Brain Training
Memory & Word Games for Adults
Free

Engage in daily brain training with adaptive games and mental tests designed to improve memory, focus, problem-solving, math, and language skills. Choose short bursts or longer sessions to fit your schedule and track your progress.

Adaptive cognitive gamesDaily brain workoutsBuild memory and focus
📚 Education
(22K)
free with in-app purchases
7
IQ Boost: Brain Trainer, Games
IQ Boost: Brain Trainer, Games
IQ Boost: Brain Trainer, Games
Daily Memory & Logic Puzzles
Free

Enhance your cognitive abilities with daily brain training games. Improve memory, logic, and focus through scientifically designed puzzles and AI-powered personalized challenges. Track your progress and elevate your mental performance.

IQ Test & Brain GamesMemory GamesLogic Puzzles
📚 Education
(4.7K)
subscription
8
IQ Masters: Brain Games, Tests
IQ Masters: Brain Games, Tests
IQ Masters: Brain Games, Tests
Memory Training for Adults
Free

Enhance your memory, logic, and cognitive abilities with a variety of brain teasers, tests, and engaging games. Explore your personality and intelligence through diverse challenges designed for mental agility and self-improvement.

Cognitive memory trainingLogic and mind gamesBrain teasers and exercises
📚 Education
(64K)
free with in-app purchases
9
Logical IQ Test
Logical IQ Test
Logical IQ Test
IQ Test
Free

This app offers weekly IQ tests to assess and enhance your logical thinking skills. No prior math or language knowledge is required. Each test features 30 questions of escalating difficulty, providing immediate results and detailed solutions.

Weekly IQ testsLogical thinking improvement30 questions per test
🎮 Games
(654)
free with in-app purchases
10
IQ Test: Intelligence Test
IQ Test: Intelligence Test
IQ Test: Intelligence Test
Measure your IQ now!
Free

Measure your intelligence and IQ with a variety of tests. Analyze your analytical, spatial, and theoretical skills through visual-based questions. See detailed results and understand the components contributing to your IQ score.

Multiple IQ test typesRavens Progressive Matrices style questionsMental test for emotional vs logical levels
🎬 Entertainment
(318)
free with in-app purchases
11
Real IQ Test
Real IQ Test
Real IQ Test
Get your IQ score
Free

Assess your cognitive abilities with a comprehensive IQ test. This application provides a quick and accurate assessment of your intelligence quotient, delivering your score immediately upon completion. It features a timed test with carefully selected questions to gauge your intellectual capacity.

Accurate IQ assessment30 balanced questions30-minute time limit
📚 Education
(88)
ad-supported
12
IQ Test Classic
IQ Test Classic
IQ Test Classic
by Pop-Hub Limited
Free

Accurately measure your intelligence quotient with this classic IQ test. Receive a certificate of your score and global ranking after completing the test. Share your results with friends and understand your cognitive abilities.

Expert-prepared accurate IQ testIQ certificate and global rankingClassic and Mensa test options
🔧 Utilities
(64)
free with in-app purchases
13
IQ Test: Brain Cognitive Games
IQ Test: Brain Cognitive Games
IQ Test: Brain Cognitive Games
Medical Games for Adults Mind
Free

Measure your intelligence quotient (IQ) with a professional, culture-free testing method. Discover your intellectual age, compare yourself to celebrities, and manage results for personal or professional use. Get detailed explanations and review errors to understand your cognitive abilities.

Culture-free IQ testing methodDetermine intellectual ageCompare IQ to celebrities
📚 Education
(2.9K)
free with in-app purchases
14
What's my IQ?
What's my IQ?
What's my IQ?
The average IQ is 100!
Free

Test your intelligence with a challenging IQ assessment. Solve a variety of math problems and puzzles to gauge your problem-solving skills and understanding of new concepts. Receive an IQ score to compare yourself to others and discover your cognitive strengths.

IQ test assessmentMath and puzzle questionsReceive IQ score
🎮 Games
(182)
free with in-app purchases
15
IQ Test Pro Edition
IQ Test Pro Edition
IQ Test Pro Edition
#1 DE #2 US More than 5M down
$2.99

Assess your intelligence with two distinct tests, each featuring a set of questions designed to gauge your cognitive abilities. This app provides solutions and an average IQ score, offering a fun way to stimulate your mind. It's available for both iPad and iPhone.

Two different IQ testsIncludes solutionsCalculates average IQ
🎮 Games
(140)
free
16
Brain Blow: Genius IQ Test
Brain Blow: Genius IQ Test
Brain Blow: Genius IQ Test
We will blow your brain out!
Free

Engage in a series of challenging riddles and brain teasers that require creative, outside-the-box thinking. Develop your logic and attention with unique puzzles and hand-drawn graphics. Hints are available to help you solve the tricky quests.

Challenging riddlesBrain teasersCreative answers
🎮 Games
(1.6K)
free with in-app purchases
17
IQ Test - Aptitude Test
IQ Test - Aptitude Test
IQ Test - Aptitude Test
Real IQ Score & Quiz Questions
Free

Discover your Intelligence Quotient with this comprehensive app. It offers a quick 4-minute test with instant scoring and detailed feedback on correct and incorrect answers. Focuses on mathematical ability to help you improve cognitive skills.

Quick 4-minute IQ testInstant IQ score and rankingDetailed feedback on answers
📚 Education
(1.7K)
free with in-app purchases
18
Riddle Master
Riddle Master
Riddle Master
Can you find all clues?
Free

This is a puzzle game designed to test your intelligence. It features tricky questions that challenge your brain power and encourage you to find all the clues. See if you can solve every riddle presented.

IQ puzzle gameSolve tricky questionsTest brain power
🎮 Games
(89K)
free with in-app purchases
19
Puzzle Master - Test Your IQ
Puzzle Master - Test Your IQ
Puzzle Master - Test Your IQ
#1 puzzle
Free

Engage your mind with a variety of challenging puzzles that test your mathematical and physical reasoning. Simple controls lead to complex problems requiring accurate calculation to progress through levels. Enjoy a fun and mentally stimulating experience.

Variety of puzzlesSimple operationMathematical skills test
🎮 Games
(1.7K)
ad-supported
20
IQ Test - Intelligence Test
IQ Test - Intelligence Test
IQ Test - Intelligence Test
by Bekir Dursun
Free

Assess your intelligence with a verified IQ test featuring 39 questions. Designed to be accessible without advanced math skills, it progresses from easy to difficult questions within a 45-minute time limit. Focus on the challenging questions for a more significant impact on your score.

Verified IQ test questions39 questions per test45-minute time limit
🎮 Games
(40)
free with in-app purchases

FAQ about Iq Challenge Book

What are the best iq challenge book apps & games for iPhone?
IQ Challenge Book tops our iq challenge book apps & games ranking as of July 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Yes — 19 of the top iq challenge book apps & games we rank are free to download, including IQ Challenge Book and IQ: how SMART am I?.
IQ Challenge Book has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 181+ iq challenge book apps & games on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
IQ Challenge Book is a free application designed to help you determine your IQ score and understand your intelligence level. It presents a series of questions and then categorizes your score based on a standard IQ scale.
You answer a set of questions within the application. After completing all questions, you click 'Final Result' to receive your IQ score and its classification, such as 'Average' or 'Genius'.