# Ishikoro Explorers:Rock Finder — Build your stone collection!

> Build your stone collection! (iPhone/iPad app by ET CETERA (Japan).)

- Source: https://appshunter.io/ios/app/ishikoro-explorersrock-finder/id6761429846 (this page in markdown: same URL + `.md`)
- Developer: [ET CETERA (Japan)](https://appshunter.io/developer/1889419353)
- Category: Education, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 37 MB
- Languages: American English, Japanese
- Released: 2026-04-10
- Data updated: 2026-08-20
- User reviews in markdown: https://appshunter.io/ios/app/ishikoro-explorersrock-finder/id6761429846/reviews.md

## What is Ishikoro Explorers?

Ishikoro Explorers

Turn your daily walks into a Treasure Hunt!
Ishikoro Explorers is an AI-powered mineral identification app that turns every pebble on the path into a discovery. Just snap a photo of a stone you find at the park, riverside, or roadside, and let the adventure begin!

Fuel your child’s curiosity and create a perfect reason for the whole family to explore the great outdoors.

How to Play: It’s as Easy as 1-2-3!
1. Find a curious stone and take a photo with your camera!
2. Our "Smart Professor" AI analyzes the stone’s name and unique traits.
3. Check the results: See the stone’s name, its Rarity (1–5 Stars), and fun "Mini-Trivia!"

Special Features to Keep Kids Excited
- The Thrill of the "Rarity" Check!
Is it a common rock or a hidden gem? Every scan calculates a rarity level. Finding a super-rare stone (4 or 5 stars) triggers a shower of virtual confetti to celebrate your big find!

- Become a Rock Expert with "Mini-Trivia"!
Every result includes a "Did you know?" fact. “Ancient people used this to make tools!” or “This stone is actually a cousin of the diamond!” It’s science made fun.

- Build Your Personal "Collection Guide"
Save your discoveries to your digital collection. As you scan more stones, your rank grows from "Novice Explorer" to "Ishikoro Master!" Earn special badges and titles as you complete your guide.

A Message for Parents (Safety & Peace of Mind)
- Kid-Friendly Interface: All text is written in simple, easy-to-read language.
- Safe AI Technology: Powered by world-leading AI (Gemini), optimized to generate safe, educational, and encouraging content for children.
- Privacy First: No account registration or personal data collection required. Just download and start exploring instantly!

Download "Ishikoro Explorers" now and start your journey! What kind of treasures are waiting right under your feet?


## Version history (last 5 releases)

### 1.0.25 — 2026-08-17

- Added a short introduction to help you get started
- Improved app startup behavior
- Various internal improvements

### 1.0.24 — 2026-05-12

In this update, we have implemented the following improvements and fixes to provide an even better stone-hunting experience:
・Camera Enhancements: Optimized autofocus performance for clearer and sharper stone photography.
・Bug Fixes: Improved overall application stability and resolved minor issues.

### 1.0.23 — 2026-05-01

・Added English language support.
・Bug fixes and performance improvements.

### 1.0.22 — 2026-04-30

English version is now available!

### 1.0.18 — 2026-04-14

・アプリの標準言語が日本語版になるよう各種調整を行いました。

## More apps by ET CETERA (Japan)

- [睡眠計測アプリ：SleepSheep](https://appshunter.io/ios/app/sleepsheep/id6788297904)

All apps by ET CETERA (Japan): https://appshunter.io/developer/1889419353

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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 2026-08-20.*