# PeekMaster

> Visual Memory Challenge、Multiple Modes、Reaction Training、Brain Games

Canonical page: [https://chrome-stats.com/d/com.threehalf.peekmaster](https://chrome-stats.com/d/com.threehalf.peekmaster)

## Overview

- **ID:** `com.threehalf.peekmaster`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** ThreeHalf
- **Category:** GAME\_EDUCATIONAL
- **Downloads:** 6
- **Version:** 1.0.1
- **Last updated:** 2026-04-07
- **First published:** 2026-04-06
- **Publisher country:** CN
- **Size:** 43 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.threehalf.peekmaster)
- **Privacy policy:** [https://jayqiu.github.io/peek\_master\_privacy\_policy.html](https://jayqiu.github.io/peek_master_privacy_policy.html)

## Description

PeekMaster - Your Visual Reaction Training Expert<br><br>A brain training app designed to sharpen your visual memory and reaction speed. Numbers flash before your eyes - how many can you recall?<br><br>🎮 GAME MODES<br>• Classic - Basic challenge: see the number, type the answer<br>• Speed - Fast-paced: 4 digits shown for just 0.3 seconds<br>• Sequence - Memory sequence challenge<br>• Interference - Numbers with visual distractions<br>• Multi Card - Multiple cards displayed simultaneously<br><br>📊 DIFFICULTY SYSTEM<br>7 difficulty levels, from 2 to 8 digits, display time from 1s down to 0.2s. Push your limits level by level!<br><br>🏆 ACHIEVEMENTS<br>• Eagle Eye - 10 consecutive correct answers<br>• Flash Eye - Complete with 0.3s recognition<br>• Memory Master - Complete Level 7 (8-digit number)<br>• Speed Demon - Complete Speed mode<br>• Perfect Streak - 20 correct in a row<br><br>⭐ RATING SYSTEM<br>• Vision Score - Calculated from accuracy, streak, and difficulty<br>• Star Rating - Based on reaction time (&lt;300ms = 3 stars)<br>• Streak Bonus - Extra points for consecutive correct answers<br><br>📱 FEATURES<br>• Clean and modern UI design<br>• Smooth animations<br>• Comprehensive game statistics<br>• Ticket system for game control<br>• In-app purchases for more plays<br><br>Download now and start your visual training journey!

## Rankings

- #2,911,451 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.VIBRATE`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.threehalf.peekmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Similar extensions and apps

- [4-Digit Flash: Eye Training](https://chrome-stats.com/d/com.yamaneko0369.dvagame1) — 792 users
- [Flash Recall: Memory Game](https://chrome-stats.com/d/com.flashrecall.ultraapps) — 683 users
- [BlinkMind – Speed Memory Game](https://chrome-stats.com/d/com.magespider.blinkmind_game) — 51 users
- [VisionFlash: Memory Game](https://chrome-stats.com/d/com.visionflash.app) — 8 users
- [SpeedSight Champions](https://chrome-stats.com/d/com.ecge.speedsightchampions) — 8 users
- [Memory Cardz](https://chrome-stats.com/d/com.mdiy.memprycards.name) — 11 users
- [BlinkField](https://chrome-stats.com/d/com.kuka.buka)
- [MindTrainer – Brain Training](https://chrome-stats.com/d/com.mindtrainer.games) — 95 users
- [Memory Test](https://chrome-stats.com/d/com.ssteam.memory_test) — 52 users
- [Brain Training: Memory & Speed](https://chrome-stats.com/d/com.DerterGames.TrainingBrain) — 2,318 users
- [Brain Click](https://chrome-stats.com/d/mn.brainclick.memorygame) — 648 users
- [Aim Nice Mauve Lush](https://chrome-stats.com/d/com.anonymous.stockmasterlite)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/com.threehalf.peekmaster)