App Overview

Rock Identifier: Stone ID icon

Rock Identifier: Stone ID

Next Vision Limited · Education

Rock Identifier is an all-in-one stone, crystal, mineral, and gemstone identifier

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
82,407 ratings · Top 15%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Rock Identifier: Stone ID: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Rock Identifier is an all-in-one stone, crystal, mineral, and gemstone identifier. Simply take or upload a photo of a rock or crystal, and the app will tell you all about it in seconds. Want to know the name of a stone you discovered in your rock hounding? Are you curious about the different properties of each stone and crystal you own? Looking to learn about rock and crystal knowledge? Don't miss this powerful stone identifier and crystal guidebook. We will satisfy all your needs! Rock & Mineral & Crystal Identifier Take a photo of any crystals or gemstones and get an instant accurate identification. This rock scanner app can recognize over 6,000 types of rocks and minerals and helps anyone who wants to identify, examine and explore the characteristics of stones. Stone & Crystal Encyclopedia In each of the identification results, the Rock Identifier app provides detailed stone/crystal information which includes: Name, Chemical Formula, Hardness, Colour Variations, and the main locations it can be found. No matter whether you are a beginner rock hound who is trying to identify the stones you discovered or an experienced crystal collector who wants to expand your geological knowledge, Rock Identifier offers the easiest and most comprehensive rock guide. Real VS Fake Gemstone This app delivers detailed and practical gemstone identification method articles, where users can learn to identify if a gemstone or crystal is real by its Color, Cleavage and Fracture, Touch, Shape, Transparency, and the like. Explore Trendy Stones Interested in the healing properties of any crystals? Want to know what gemstones to have for your specific zodiac sign? Download this rock scanner app to find out the mysterious healing power of crystals, and learn more facts about zodiac stones, birthstones, and so much more. Metal Detector Lost your key and have no idea how to find it? With the in-app Metal Detector function, Rock Identifier can help you locate your lost key by measuring the surrounding magnetic field strength. Never worry about losing metal objects again! One-on-one Consultation with Rock Expert This scanner app not only provides you with lively, professional knowledge of mineralogy and petrology but also offers an email service for one-on-one inquiry help. Unique Rock Collections Display all your stone and mineral collectibles with the Collection function; add desirable crystals and gemstones to your wishlist. The app will also automatically keep your ID record so that you can go back to find them. Rock Identifier was created to help more people explore and learn about the geological surroundings around them. Download the app today to enjoy a more pleasant stone & crystal journey and train yourself to be a rock expert! About Rock Identifier Premium: -Subscription Name: Yearly Premium -Subscription Duration:1 year(7 days trial) -Subscription Description: Users will get a 1-year Rock Identifier Premium which includes identifying rocks without limits, studying rocks with numerous info, and no watermarks or ads. • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period • The account will be charged for renewal within 24 hours prior to the end of the current period, and identify the cost of the renewal • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Terms of Use: https://app-service.rockidentifier.com/static/user_agreement.html Privacy Policy: https://app-service.rockidentifier.com/static/privacy_policy.html Contact us: [email protected] Find out more about Picture Rock at: https://www.rockidentifier.com/

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement a user feedback system to improve identification accuracy.

Assumption to check: Users report difficulty in identifying certain rock types accurately.

Validate with people who use this workflow before building.

Hypothesis 2

Expand the database with more detailed rock characteristics.

Assumption to check: Limited information on rock properties available.

Validate with people who use this workflow before building.

Hypothesis 3

Simplify the purchase flow and provide clear explanations of benefits.

Assumption to check: In-app purchases can be confusing for users.

Validate with people who use this workflow before building.

Hypothesis 4

Add social features for users to share their identified rocks and experiences.

Assumption to check: Lack of community features for sharing findings.

Validate with people who use this workflow before building.

Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.