Best Challenging Apps & Games

225+ iOS apps & games curated and reviewed

4.5 avg rating
20 free apps & games
Updated August 2026

Whether you're new to challenging or looking for an upgrade, our curated collection of 225+ iOS apps and games has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Challenging Apps & Games (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Brain Test: Tricky PuzzlesBrain Test: Tricky PuzzlesFree4.8★ (1.5M)YesYesAug 2026
2Word Galaxy ChallengeWord Galaxy ChallengeFree4.7★ (72K)YesYesAug 2026
3Brain It On!Brain It On!Free4.5★ (5.1K)YesYesAug 2026
4Meme Challenge-Funny Card GameMeme Challenge-Funny Card GameFree4.7★ (228K)YesYesAug 2026
5Trivia Crack Retro Brain GamesTrivia Crack Retro Brain GamesFree4.7★ (286K)YesYesAug 2026
6Impulse - Brain TrainingImpulse - Brain TrainingFree4.7★ (847K)YesYesAug 2026
7Match 3DMatch 3DFree4.8★ (970K)YesYesAug 2026
875 Challenge - Life Reset75 Challenge - Life ResetFree5.0★ (4)NoYesAug 2026

Top Picks for Challenging

Brain Test: Tricky Puzzles#1

Brain Test: Tricky Puzzles by UNICO STUDIO

Can you solve them all?
Editor's Choice
🎮 Games
4.8😐(1.5M ratings)
FreeAdsIn-App Purchases
#1in Games
Brain Test: Tricky Puzzles screenshot 1
Brain Test: Tricky Puzzles screenshot 2
Brain Test: Tricky Puzzles screenshot 3
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
Word Galaxy Challenge#2

Word Galaxy Challenge by Fiogonia Games

Relaxing Word Puzzle Game
Strong Contender
🎮 Games
4.7😊(72K ratings)
FreeAdsIn-App Purchases
Word Galaxy Challenge screenshot 1
Word Galaxy Challenge screenshot 2
Word Galaxy Challenge screenshot 3
Word Galaxy Challenge screenshot 4
Word Galaxy Challenge screenshot 5
Word Galaxy Challenge screenshot 6

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.

What We Love

  • 🚀 Fast and fun gameplay
  • 👍 Relaxing and brain-stimulating
  • 💡 Helpful for improving memory and cognition
  • 🤓 Challenging yet enjoyable for all ages

Room to Improve

  • 🔋 Drains battery quickly
  • 🔍 Limited word dictionary, some valid words not accepted
  • 📢 Excessive ads disrupting gameplay
Brain It On!#3

Brain It On! by Orbital Nine Games Inc

Challenging Physics Puzzles
Worth Considering
🎮 Games
4.5😊(5.1K ratings)
FreeAdsIn-App Purchases
Brain It On! screenshot 1
Brain It On! screenshot 2
Brain It On! screenshot 3
Brain It On! screenshot 4
Brain It On! screenshot 5

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.

What We Love

  • 🚀 Challenging and fun
  • 🔒 No ads
  • 👍 Engaging physics-based puzzles
  • 👍 Encourages creative thinking

Room to Improve

  • 🐛 Drawing accuracy issues
  • 🐛 Glitches and crashes
  • 🐛 Difficulty spikes too quickly

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
(228K)
free with in-app purchases
5
Trivia Crack Retro Brain Games
Trivia Crack Retro Brain Games
Trivia Crack Retro Brain Games
Daily Fun Puzzle Games
Free

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.

Brain training through triviaChallenge friends and global playersStudy diverse topics (history, science, art)
🎮 Games
(286K)
free with in-app purchases
6
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
(847K)
free with in-app purchases
7
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
8
75 Challenge - Life Reset
75 Challenge - Life Reset
75 Challenge - Life Reset
75 Medium, Soft, Hard, Her 75
Free

This app helps you commit to and track personalized 75-day challenges focused on habit building. Choose from pre-set protocols or create your own daily rules for fitness, nutrition, and personal growth.

Customizable 75-day challenge protocolsPre-set challenges (Hard, Medium, Soft, Her)Daily task tracking
📊 Productivity
(4)
free
9
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
10
Fitingo: Workouts for Women
Fitingo: Workouts for Women
Fitingo: Workouts for Women
Fitness exercise at home
Free

Personalized weight-loss plans and home workouts designed for women. Choose a trainer, focus on problem areas, and track your progress with short, effective exercise routines.

Personalized weight-loss plansHome workouts for womenChoose personal trainers
💪 Health & Fitness
(17K)
subscription
11
The Impossible Test - Fun Free Trivia Game
The Impossible Test - Fun Free Trivia Game
The Impossible Test - Fun Free Trivia Game
by PIXELCUBE STUDIOS INC.
Free

This interactive trivia game challenges players with unique puzzles requiring swipes, tilts, and taps. Compete against others to achieve the fastest times and earn in-game rewards. It offers a variety of levels and modes to test your mental agility.

Interactive levelsMultiple game modesMedals and secrets
🎮 Games
(442)
free with in-app purchases
12
8 Ball Pool™
8 Ball Pool™
8 Ball Pool™
Online Pool Multiplayer Games
Free

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.

Online multiplayer PvP modeChallenge friends directlyCustomize cues and tables
🎮 Games
(4.8M)
free with in-app purchases
13
Sudoku - Brain Puzzle Games
Sudoku - Brain Puzzle Games
Sudoku - Brain Puzzle Games
Sudoku - Math Puzzles
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
(307K)
free with in-app purchases
14
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
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
Chicken Master: Run Challenge
Chicken Master: Run Challenge
Chicken Master: Run Challenge
Chicken fly: Screaming Chicken
Free

Guide a flock of chickens through a variety of hilarious and thrilling mini-games. Test your reflexes and strategy in challenges like carving candy, crossing glass bridges, and timing statue movements. Enjoy endless entertainment with charming graphics and intuitive controls.

Seven thrilling mini-gamesDalgona candy carvingGlass bridge survival
🎮 Games
(1.3K)
free with in-app purchases
17
Bix Challenge
Bix Challenge
Bix Challenge
by Padadaz
Free

Draw shapes to fill a percentage of the screen and trap moving balls. Unleash special powers when you successfully capture them. Compete to see how far you can advance in this engaging puzzle game.

Draw shapes to fill screenTrap moving ballsUnleash special powers
🎮 Games
(21)
free with in-app purchases
18
Bottle Cap Challenge: The Rise
Bottle Cap Challenge: The Rise
Bottle Cap Challenge: The Rise
Master of spin and test fun
Free

Experience the viral sensation with a unique twist. Swipe to spin a bottle cap as high as possible, offering a fun way to relieve stress. Download for free and aim to become the ultimate bottle cap master.

Viral challenge gameplayIntuitive swipe controlsHigh cap spinning
🎮 Games
(1.5K)
free with in-app purchases
19
WHY NOT: Challenges
WHY NOT: Challenges
WHY NOT: Challenges
by Marwan Mahmoud
Free
🌐 Social Networking
(0)
20
Steppa - Step Challenges
Steppa - Step Challenges
Steppa - Step Challenges
Daily step competitions
Free

Engage in daily step competitions with real rewards. Join challenges, meet daily step goals, and earn a share of the prize pool upon completion. Track progress via Apple Health and compete with friends for motivation.

Daily step competitionsReal prize pool payoutsApple Health integration
💪 Health & Fitness
(1.1K)
free

FAQ about Challenging

What are the best challenging apps & games for iPhone?
Brain Test: Tricky Puzzles tops our challenging apps & games ranking as of August 2026, with a 4.8-star average from 1.5M App Store ratings, and it's free to download.
Yes — 20 of the top challenging apps & games we rank are free to download, including Brain Test: Tricky Puzzles and Word Galaxy Challenge.
Brain Test: Tricky Puzzles shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 225+ challenging apps & games on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Brain Test: Tricky Puzzles is a collection of clever and surprising puzzles designed to entertain through misdirection and playful logic. It offers unconventional challenges that encourage creative thinking and experimentation in a casual, stress-free environment.
Key features include unconventional puzzle design with surprising twists, simple yet engaging mechanics, and a relaxed experience free from timers or competition. The puzzles are family-friendly and suitable for solo play or sharing with friends.

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