Best Challenging Apps & Games

217+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated June 2026

Whether you're new to challenging or looking for an upgrade, our curated collection of 217+ iOS apps and games has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Challenging

Brain Test: Tricky Puzzles#1

Brain Test: Tricky Puzzles by UNICO STUDIO LLC

Can you solve them all?
Editor's Choice
🎮 Games
4.8😐(240K ratings)
FreeAdsIn-App Purchases
#2in Games
Brain Test: Tricky Puzzles screenshot 1
Brain Test: Tricky Puzzles screenshot 2
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Brain Test: Tricky Puzzles screenshot 4
Brain Test: Tricky Puzzles screenshot 5
Brain Test: Tricky Puzzles screenshot 6

Engage your mind with a collection of clever and surprising puzzles that use misdirection and playful logic. This app offers unconventional challenges designed for casual enjoyment and creative thinking, perfect for solo play or sharing.

What We Love

  • 🚀 Fun and challenging
  • 👍 Helps sharpen the mind
  • 😊 Addictive and entertaining

Room to Improve

  • 🤬 Too many ads
  • 🙄 Ads interrupt gameplay
  • 😒 Ads are repetitive
Trivia Crack Retro Brain Games#2

Trivia Crack Retro Brain Games by Etermax

Play Fun Trivia Games
Strong Contender
🎮 Games
4.7😞(286K ratings)
FreeAdsIn-App Purchases
#55in Games
Trivia Crack Retro Brain Games screenshot 1
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Trivia Crack Retro Brain Games screenshot 5
Trivia Crack Retro Brain Games screenshot 6

Engage in a classic trivia experience to sharpen your mind and memory. Challenge friends and players worldwide, study diverse topics, and discover new facts. This app offers endless questions and opportunities to learn and grow.

What We Love

  • 🚀 Fun and addictive gameplay
  • 🤓 Helps improve knowledge and trivia skills
  • 👍 Variety of game modes to choose from

Room to Improve

  • 💸 Excessive and intrusive ads
  • 🐛 Frequent crashes and glitches
  • 🤔 Inconsistent and inaccurate questions
8 Ball Pool™#3

8 Ball Pool™ by Miniclip SA

Online Pool Multiplayer Games
Worth Considering
🎮 Games
4.8😐(4.7M ratings)
FreeAdsIn-App Purchases
#4in Games
8 Ball Pool™ screenshot 1
8 Ball Pool™ screenshot 2
8 Ball Pool™ screenshot 3
8 Ball Pool™ screenshot 4

Engage in challenging 3D pool games against friends and players worldwide. Master your aiming and strategy to win matches, earn coins, and unlock exclusive items. Compete in leagues and tournaments to become a pool master.

What We Love

  • 🚀 Excellent pool simulation
  • 🎮 Addictive and fun gameplay
  • 🌍 Ability to play with people worldwide
  • 🏆 Competitive tournaments and leagues

Room to Improve

  • 🤖 Rampant cheating and use of hacks
  • ⚖️ Unfair matchmaking and skill-based pairing
  • 💰 Aggressive monetization and pay-to-win mechanics

More Challenging apps to explore

4
Meme Challenge-Funny Card Game
Meme Challenge-Funny Card Game
Meme Challenge-Funny Card Game
Make dank memes and have fun!
Free

Create and compete with hilarious memes in this card game. Choose the funniest meme for the situation to make your audience laugh and win. Improve your collection and challenge other meme masters.

Create hilarious memesCompete with other playersWin tournaments
🎮 Games
(225K)
free with in-app purchases
5
Impulse - Brain Training
Impulse - Brain Training
Impulse - Brain Training
Mental Health Games & Puzzles
Free

Enhance your cognitive abilities with personalized brain training games and puzzles. Discover your mental strengths and weaknesses through self-discovery tests, and track your progress over time to build a sharper mind.

Personalized daily training plansMemory & processing speed trainingAttention & focus exercises
📚 Education
(838K)
free with in-app purchases
6
Sudoku - Brain Puzzle Games
Sudoku - Brain Puzzle Games
Sudoku - Brain Puzzle Games
Jeux de Sudoku quotidiens
Free

Engage your mind with over 5,000 classic Sudoku puzzles across multiple difficulty levels. Enjoy daily challenges, smart hints, and customizable themes for a stress-free, offline gaming experience. Compete globally and explore new puzzle types.

5,000+ Classic Sudoku PuzzlesFour Difficulty LevelsDaily Challenges and Rewards
🎮 Games
(301K)
free with in-app purchases
7
Word Galaxy Challenge
Word Galaxy Challenge
Word Galaxy Challenge
Relaxing Word Puzzle Game
Free

Engage your mind with a relaxing word puzzle game set against beautiful landscapes. Improve your vocabulary by finding hidden words and solving progressively challenging puzzles. This game offers a fun and unique brain training experience.

Solve word puzzlesImprove vocabularyStunning backgrounds
🎮 Games
(71K)
free with in-app purchases
8
Match 3D
Match 3D
Match 3D
Solve Hidden Objects Puzzle
Free

Engage in a challenging 3D matching puzzle where you pair objects on the ground to clear levels. Enjoy satisfying visual effects and well-designed levels that also improve your memory. Pause and resume your game anytime.

3D object matchingBrain trainer levelsPause and resume gameplay
🎮 Games
(970K)
free with in-app purchases
9
Subway Surfers
Subway Surfers
Subway Surfers
Join the endless running fun!
Free
$0.99 | 100% OFF

Embark on an exhilarating endless running adventure. Dash through vibrant environments, dodge obstacles, and outrun pursuers. Utilize power-ups like jetpacks and hoverboards to enhance your escape and achieve high scores.

Endless running gameplayDodge oncoming trainsGrind trains
🎮 Games
(3.8M)
free with in-app purchases
10
Brain It On!
Brain It On!
Brain It On!
Challenging Physics Puzzles
Free

Engage your mind with tricky physics puzzles. Draw shapes to find creative solutions to increasingly difficult challenges. Compete with friends and discover multiple ways to solve each puzzle.

Dozens of brain-busting puzzlesPuzzles added regularlyCompete with friends
🎮 Games
(5.1K)
free with in-app purchases
11
Sports Car Challenge
Sports Car Challenge
Sports Car Challenge
by Volkswagen (China) Investment Co., Ltd.
Free

Experience high-speed racing with a collection of luxury sports cars. Test your driving skills on challenging tracks with realistic physics and stunning graphics. Compete for high scores and dominate leaderboards.

Realistic driving physicsAuthentic engine soundsLicensed luxury sports cars
🎮 Games
(2.4K)
free
12
Water Bottle Flip Challenge 2
Water Bottle Flip Challenge 2
Water Bottle Flip Challenge 2
Play the viral flipping game!
Free

Experience the viral water bottle flipping craze on your mobile device. Tap to flip your bottle and aim for the perfect landing to score. Collect in-game currency to unlock a variety of new bottle designs.

Tap to flipPerfect landing challengesUnlock new bottles
🎮 Games
(1.6K)
free with in-app purchases
13
PBA® Bowling Challenge
PBA® Bowling Challenge
PBA® Bowling Challenge
Bowl! Strike! 3D Sport Arcade!
Free

Compete against professional bowlers in realistic 3D matches, from local alleys to national championships. Master your skills in career mode or challenge friends in real-time multiplayer. Unlock new balls and face legendary opponents.

Career modeReal-time multiplayerCompete against 24 PBA bowlers
🎮 Games
(131K)
free with in-app purchases
14
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
15
Candy Challenge 3D: Survival!
Candy Challenge 3D: Survival!
Candy Challenge 3D: Survival!
Can you win the prize?
Free

Engage in a variety of mini-games, testing your carving, precision, shooting, and timing skills across hundreds of levels. Become the last one standing in this fun survival experience.

Hundreds of new levelsVariety of mini-gamesCarving skills test
🎮 Games
(73K)
free with in-app purchases
16
Crack Word Challenges
Crack Word Challenges
Crack Word Challenges
test your vocabulary
Free

This word game challenges your vocabulary and brain with daily puzzles and hundreds of levels. Drag and drop letters to form words, strategize to score points, and compete with others in multiplayer mode. Utilize boosters and wildcards to help you progress.

Daily brain teasersHundreds of levelsDrag and drop letter mechanics
🎮 Games
(2.8K)
free with in-app purchases
17
Monster Challenge!
Monster Challenge!
Monster Challenge!
Survival and escape
Free

Embark on an engaging gaming adventure with numerous levels designed to help you relax and de-stress. Experience a fun and immersive world that offers a great escape from daily pressures.

Multiple game levelsStress reliefEscape gameplay
🎮 Games
(10K)
ad-supported
18
Silent library challenge
Silent library challenge
Silent library challenge
Variety Game Show
Free

Engage in a quiet challenge within a library setting. Avoid making noise to prevent angering the librarian. Compete to become the 'Secretly King' in this unique variety game show experience.

Quiet library gameplayLibrarian anger mechanicSecretly King competition
🎮 Games
(3.5K)
ad-supported
19
K-Run Challenge 3D
K-Run Challenge 3D
K-Run Challenge 3D
Exciting game
Free

Engage in an exciting survival game where you compete in minigames and challenges for prize money. Test your skills and courage to be the last one standing in this thrilling battle royale.

Survival minigamesCompetitive challengesPrize money rewards
🎮 Games
(4.5K)
ad-supported
20
ESPN Tournament Challenge
ESPN Tournament Challenge
ESPN Tournament Challenge
Basketball Bracket Game
Free

Create and manage brackets for college basketball tournaments. Compete with friends and experts for prizes, utilize prediction tools, and track your bracket's performance in real-time. Offers quick fill options and team insights to help you make informed picks.

Create multiple bracketsCompete in groupsPredictor and Analyzer tools
⚽ Sports
(44K)
free with in-app purchases

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