Test your intelligence with a classic riddle, rumored to have been created by Albert Einstein. This version offers a fully functional experience, though progress is not saved upon exiting.



249+ iOS apps & games curated and reviewed
Looking for free folklore puzzle apps and games? 20 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | Yes | No | May 2026 | ||
| 2 | Free | 3.4★ (9) | No | No | May 2026 | ||
| 3 | Free | 4.8★ (53) | Yes | Yes | Sep 2026 | ||
| 4 | Free | 4.5★ (160) | No | Yes | Aug 2026 | ||
| 5 | Free | 3.8★ (15) | No | Yes | Sep 2026 | ||
| 6 | Free | 4.5★ (55K) | Yes | No | Sep 2026 | ||
| 7 | Free | 4.8★ (290) | No | No | Aug 2026 | ||
| 8 | Free | — | Yes | No | May 2026 |







Test your intelligence with a classic riddle, rumored to have been created by Albert Einstein. This version offers a fully functional experience, though progress is not saved upon exiting.





Experience a chilling horror puzzle game where each level unfolds a dark narrative. Solve mind-bending riddles inspired by nightmare logic, requiring unconventional thinking to progress through eerie environments. Uncover a mysterious story with every solved puzzle.