# GridDuel: Schulte Battle — Attention, Reflex & 1v1 Duels

> Attention, Reflex & 1v1 Duels (iPhone/iPad app by 贺 黄.)

- Source: https://appshunter.io/ios/app/gridduel-schulte-battle/id6812597032 (this page in markdown: same URL + `.md`)
- Developer: [贺 黄](https://appshunter.io/developer/492088131)
- Category: Games, Education, Casual, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 13 MB
- Languages: Chinese (Simplified, China), American English
- Released: 2026-09-21
- Data updated: 2026-10-06

## What is GridDuel?

Think fast. Tap faster. Outfocus everyone.

GridDuel turns the classic Schulte Grid into real-time 1v1 focus battles. Tap numbers in order, stay calm under pressure, and beat your rival to the last square. Every match is short, intense, and designed to train attention, visual search, and reaction speed.

Whether you have 30 seconds or 30 minutes, GridDuel gives you a fast brain workout that feels like a game - not a chore.

WHY PLAYERS LOVE GRIDDUEL
• Real-time 1v1 duels: match with players worldwide and race to clear the grid.
• Classic Schulte Grid: 3x3, 5x5,7x7 and more sizes for every skill level.
• Ranked climb: win duels, earn trophies, and rise from Bronze to Grandmaster.
• Challenge friends: create private rooms and rematch your rivals.
• Track your progress: best times, accuracy, streaks, and focus trends.
• Quick sessions: perfect for a 30-second focus break or a long training run.
• Clean, distraction-free design: big grids, smooth taps, and clear feedback.
• Haptic feedback: feel every tap and every win.

HOW TO PLAY
1. Enter a match or challenge a friend.
2. Tap the numbers in order as fast as you can.
3. Stay accurate under pressure.
4. Finish first to win trophies and climb the ranks.

PERFECT FOR
• Brain training and focus fans
• Students and professionals who want sharper attention
• Competitive players who love fast, skill-based games
• Anyone who wants to improve reaction speed and visual scanning

GridDuel is easy to learn, hard to master, and built for quick competitive fun.

Download GridDuel and turn focus into a competition.

## Is GridDuel safe?

Not enough ratings yet to assess GridDuel.

## Is GridDuel legit?

GridDuel: Schulte Battle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for GridDuel is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2.0 — 2026-09-27

bug fix

### 1.1.0 — 2026-09-21

- A more prominent Instant 1v1 Duel now leads the home screen.
- Improved matchmaking starts a server-controlled rival match after about five seconds when no human opponent is available.
- Rival profiles and results now appear in match cards and leaderboards for a more active competitive experience.
- Added softer background music and clearer gameplay sound effects.
- Improved music transitions, score syncing, and several interface details.

### 1.0 — 2026-09-21

No release notes.

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All apps by 贺 黄: https://appshunter.io/developer/492088131

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-06.*