# GemTrace: Gemstone Guide

> Gemstone encyclopedia: explore 144 gems, birthstones, crystals & Mohs guide

Canonical page: [https://chrome-stats.com/d/com.appdevelopsk.gemstone\_encyclopedia](https://chrome-stats.com/d/com.appdevelopsk.gemstone_encyclopedia)

## Overview

- **ID:** `com.appdevelopsk.gemstone_encyclopedia`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** appdevelopsk
- **Category:** EDUCATION
- **Downloads:** 18
- **Version:** 1.0.6
- **Last updated:** 2026-07-27
- **First published:** 2026-05-28
- **Publisher country:** JP
- **Size:** 90 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.appdevelopsk.gemstone_encyclopedia)
- **Website:** [https://appdevelopsk.com/privacy-policy/gemstone-encyclopedia/](https://appdevelopsk.com/privacy-policy/gemstone-encyclopedia/)
- **Privacy policy:** [https://appdevelopsk.github.io/privacy-policies/gemstone-encyclopedia](https://appdevelopsk.github.io/privacy-policies/gemstone-encyclopedia)

## Description

GemTrace — Gemstone Encyclopedia &amp; Guide<br><br>Explore the dazzling world of gemstones and minerals with GemTrace! This comprehensive encyclopedia features 144 gemstones with detailed information about each one.<br><br>FEATURES:<br>• 144 Gemstones — Browse diamonds, rubies, sapphires, emeralds, and many more<br>• Detailed Profiles — Learn about each gemstone&#39;s hardness, crystal system, color, and origin<br>• Birthstone Guide — Discover which gemstones are associated with each month<br>• Mohs Hardness Scale — Understand the durability and hardness of each stone<br>• Crystal Systems — Explore the fascinating geometry of mineral crystals<br>• Quiz Mode — Test your gemological knowledge with fun quizzes<br>• Stunning Photography — High-quality images showcasing each gemstone&#39;s beauty<br><br>EDUCATIONAL &amp; BEAUTIFUL:<br>Whether you&#39;re a jewelry enthusiast, geology student, or collector, GemTrace is your perfect guide to the world of precious and semi-precious stones. Discover the science and beauty behind every gem!<br><br>Available in 17 languages. Free to download with optional premium features.

## Rankings

- #2,647,410 — 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.POST_NOTIFICATIONS`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.appdevelopsk.gemstone_encyclopedia.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`

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