# Luck Test! - Gacha Simulator

> Create your own odds and feel the probability. Roulette, auto-draw & bulk sim.

Canonical page: [https://chrome-stats.com/d/com.wonbo.gatchatest](https://chrome-stats.com/d/com.wonbo.gatchatest)

## Overview

- **ID:** `com.wonbo.gatchatest`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** SianLab
- **Category:** ENTERTAINMENT
- **Downloads:** 563
- **Version:** 28.0
- **Last updated:** 2026-07-27
- **First published:** 2025-07-18
- **Publisher country:** KR
- **Size:** 25 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.wonbo.gatchatest)
- **Website:** [https://coinboy.blog](https://coinboy.blog/)
- **Privacy policy:** [https://sianlab.kr/gatchatest-policy](https://sianlab.kr/gatchatest-policy)

## Description

Will it drop this time? Feel it before you pull.<br><br>Luck Test is a probability simulator where you create your own odds table and draw instantly.<br>From game gacha &amp; upgrade rates to everyday choices like what to eat.<br><br>■ Perfect for<br>- Feeling gacha / upgrade rates before you commit<br>- Making everyday decisions - lottery, roulette, dice, coin flip<br>- Sharing custom probability setups with friends<br><br>■ Key Features<br>- Custom Odds Tables - Add and edit items &amp; percentages freely<br>- Even Distribute - Balance to 100% in one tap<br>- Multiple Draw Modes - Single Draw, Roulette Mode, Auto Draw<br>- Bulk Simulation - Run thousands of draws at once to see real probability<br>- Link Share &amp; Community - Share your setups and load others&#39;<br>- Save on Device - Keep your favorite tables locally<br>- Dark Mode, Sound &amp; Visual Effects<br><br>■ Example Uses<br>- Gacha &amp; upgrade success/fail simulation for Genshin, MapleStory, Lost Ark<br>- What should I eat? Food roulette<br>- Coin flip / Dice roll / Drawing lots<br>- Picking a loser, duties, or random choices<br><br>■ Notice<br>This app is for probability simulation only. It is unrelated to real prizes, winnings, or cash value. Use it for fun, learning, and decision support.

## Rankings

- #1,339,399 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.wonbo.gatchatest.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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