Test your observation skills by finding the unique image among a set of similar ones. Race against the clock to complete each challenge and discover all the hidden differences.



248+ iOS apps & games curated and reviewed
Out of 248+ odd one out puzzle apps and games on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.7★ (11) | No | No | May 2026 | |
| 2 | Free | 4.2★ (89) | No | Yes | Aug 2026 | |
| 3 | Free | 3.1★ (43) | No | No | May 2026 | |
| 4 | Free | 4.6★ (1.1K) | No | Yes | Aug 2026 | |
| 5 | Free | — | Yes | No | May 2026 | |
| 6 | Free | 5.0★ (4) | Yes | Yes | May 2026 | |
| 7 | Free | 4.8★ (42) | No | Yes | May 2026 | |
| 8 | Free | 4.7★ (5.2K) | Yes | No | Aug 2026 |



Test your observation skills by finding the unique image among a set of similar ones. Race against the clock to complete each challenge and discover all the hidden differences.






Engage your brain with this free word puzzle game. Spot the odd letter or difference between images across hundreds of levels. It's an addictive and fun way to sharpen your logic and observation skills, playable offline.



Test your observation and problem-solving skills with this picture trivia game. Find the one photo that doesn't belong with the other three in a variety of challenging puzzles. It's a fun way to exercise your brain and improve focus for all ages.


Test your observation skills by finding the unique icon among a collection of similar images. This game offers a vast library of icons to challenge your perception. Enjoy an ad-free experience as you play.




Challenge your observation skills by finding the unique item among a set of similar objects. With numerous themes and levels, the game offers a fresh experience each time. Compete with others on leaderboards or play at your own pace.


Engage in an addictive puzzle game where you must find the single different item among a collection. With various difficulty levels and numerous stages, it offers a fun and visually appealing challenge for all players.


Engage your mind with a creative and surprising brain-teasing game. Spot illogical elements and hidden oddities in imaginative scenes. Discover funny references and challenge your observation skills across diverse difficulty levels.


Test your visual acuity with this simple puzzle game. It presents you with a grid of emojis and challenges you to find the one that is different. Sharpen your observation skills in this quick and engaging game.






A minimalist puzzle game where you tap arrows in the correct sequence to clear a grid. It offers a zen-like experience with challenging logic puzzles and a sleek interface, playable offline.


Test your observation skills in this addictive puzzle game. Four images are presented, and your goal is to identify the one that doesn't belong. Unlock helpful clues to assist you in finding the odd one out.


Engage in a humorous and imaginative puzzle-solving adventure with unconventional logic and unexpected twists. This sequel offers a richer experience with quirky plot lines and interactive elements, requiring creative thinking and wit to overcome bizarre challenges. Enjoy simple controls and unlimited hints to spark new ideas.


A minimalist logic puzzle game where players place cats on a grid, ensuring each row, column, and region has one cat, and no two cats are adjacent. It offers a calming, deduction-based experience with no timers or pressure, playable offline.








Solve challenging logic puzzles by tapping arrows in the correct sequence to clear the grid. Plan your moves carefully to avoid mistakes and enjoy smooth animations and crisp visuals. This game offers a satisfying brain break with its intuitive controls and offline play.


This brain teaser challenges you to identify the picture that doesn't belong among four options. It offers a fun way to test your observation skills and logic with various difficulty levels. Ideal for those who enjoy word and quiz games, it also serves as a language learning tool.