Apps by OPTOELECTRONICS FUTURE LTD
Number Challenge: Brain Game app icon

Games

Number Challenge: Brain Game

OPTOELECTRONICS FUTURE LTD

Free download In-app purchases unconfirmed
Open on Apple

About this app

Number Challenge: Brain Game is a fast, addictive focus test inspired by viral “think of a number” challenges. Pick a number in your head, keep your eyes locked on the center, and stay calm while numbers appear and distractions try to break your concentration. The better your focus, the higher your score. How to Play Choose a number (0–9) silently. Focus on the center area while numbers cycle. Tap to confirm when you’re ready. Beat the timer and keep your streak alive. Features Quick rounds for instant play Focus & perception challenge (simple rules, surprisingly hard) Streaks + best score tracking Clean minimal design (easy to understand, hard to master) Play anywhere — no complicated setup Train your attention, test your perception, and challenge friends to see who stays focused the longest.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Sep 14, 2026 · 0 ratings Sep 14, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Sep 14, 2026 · Free Sep 14, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 14, 2026 · 6:48 AM Free

Screenshots

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