Challenge World
Eric Martial Kameni Games iPhoneiPadiPod touch
Challenge World is a free Games app for iPhone and iPad by Eric Martial Kameni. Requires iOS 15.1. Updated August 11, 2026.
- Price
- Free
- on the App Store
- Size
- 88 MB
- Age 12+
- Updated
- Aug 11
- 2026 · v1.0.8
Screenshots
About Challenge World
Challenge World is a cognitive gauntlet built to find your limits. 310 levels. 50+ challenge types. Every session different. You'll face memory grids, rhythm tests, spatial logic, pattern locks, voice challenges, estimation games, reflex traps, and dozens of mechanics you won't see coming. The game shuffles daily the same level plays differently every time. 6 TIERS. RISING DIFFICULTY. Foundation is free. Prove you belong before you touch Synapse, Cortex, Nexus, Zenith, or Apex. Most players don't clear the third tier. A handful reach the top. YOUR IQ MOVES. Every level you pass raises your IQ score. Every fail costs you. Hints carry a penalty. The leaderboard is honest no grinding past it. HEAD-TO-HEAD MODE Challenge real players to 1v1 duels. Pick a topic, pick your opponent, prove it live. GAUNTLETS & BOSS LEVELS Every tier ends with a gauntlet 10 challenges, zero resets, zero mercy. One wrong answer sends you back to 1. Boss levels pull from your entire tier history. You don't skip them. Available in English and French.
What’s new
Version 1.0.8 · Updated August 11, 2026
Certains niveaux ne pouvaient pas être terminés dans le temps imparti, quelle que soit votre performance. Cette mise à jour corrige cela. - Plusieurs défis se déroulaient selon une séquence fixe plus longue que le chronomètre, si bien qu'un sans-faute donnait quand même zéro. Leur durée correspond désormais à ce que le niveau demande réellement. - Un niveau de grille numérique affichait 25 points à relier alors qu'il en prévoyait 8. - Un niveau de rythme n'était réussissable que certains jours, selon la difficulté tirée le matin même. - Deux niveaux de visée laissaient moins de temps par cible qu'il n'en faut pour distinguer une cible d'un leurre. - Chacun des 195 types de défis dispose maintenant d'une durée minimale en dessous de laquelle il ne peut jamais descendre, quels que soient votre série en cours et le tirage du jour. Si un niveau vous semble impossible plutôt que difficile, dites-le-nous. C'est le signalement d'un joueur qui a permis de trouver ces problèmes.
App privacy
The developer, Eric Martial Kameni, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Contact Info: Email Address, Name
- Usage Data: Product Interaction
- Diagnostics: Crash Data
Used for: App Functionality
Alternatives to Challenge World
Looking for apps like Challenge World? Here are 6 similar apps on the App Store. The highest rated is Brain Wars (4.6/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Challenge World | – | Free | August 11, 2026 | |
| IQ Battle – Brain Duels | – | Free | Sep 29, 2026 | Compare |
| Braino: Brain Training Games | – | Free | Sep 20, 2026 | Compare |
| Math Riddles: Brain Games | 4.4 / 5 (5) | Free | Oct 3, 2026 | Compare |
| Stockfish Chess Analysis | 4.4 / 5 (81) | Free | Jul 12, 2026 | Compare |
| Brain Wars | 4.6 / 5 (2,486) | Free | Oct 6, 2026 | Compare |
| Linko - Relaxing Loop | 3.8 / 5 (26) | Free | Jun 16, 2026 | Compare |
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