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.
MineralMap puts the world's most comprehensive mining database in your pocket
$2.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for MineralMap: map the core Reference workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Lack of user engagement due to limited interactive features.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Users may find it hard to navigate through large mineral databases.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited information on each mineral may lead to user dissatisfaction.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No user-generated content can restrict user retention.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
MineralMap puts the world's most comprehensive mining database in your pocket. Explore over 413,000 mines and mineral deposits across 215 countries, compiled from 12 authoritative government and scientific sources. No subscription, no ads, no in-app purchases **EXPLORE THE WORLD OF MINING** Start with a global density grid showing mine concentrations across every continent. Drill down through regional grids to individual mine pins, color-coded by status — Active, Closed, Prospect, or Other. Switch between Standard, Hybrid, and Satellite map views to see mine sites in their real-world context. **COMPREHENSIVE MINE DATA** Every mine entry includes location, coordinates, commodities, status, mine type, deposit type, ownership, production history, and data provenance. See which independent sources verified each record, from the USGS Mineral Resources Data System to Geoscience Australia's OZMIN database. **POWERFUL SEARCH & NAVIGATION** - Search mines by name instantly - Navigate by coordinates (decimal or compass notation), place names, or GPS - Filter visible mines by commodity — Gold, Silver, Copper, Lithium, and 14 others - Filter by status — Active, Closed, Prospect, or Other **BROWSE & DISCOVER** Explore mines organized by Country, Commodity, Status, or Mine Type. View statistics with interactive pie charts showing mine distribution breakdowns. Search and sort within any list. Discover something new with the Random Mine feature. **NEAR ME** Find mines near your current location with three views: - **List** — sorted by distance with search and sort options - **Map** — see nearby mines with driving routes and distance labels - **Compass** — a live compass pointing to the 5 closest mines Adjust the search radius from 25 km to 250 km. **FAVORITES & NOTES** Save mines you find interesting with a tap. Add personal notes to any mine. Sort your favorites by name, date added, country, or distance. Export your entire collection as a CSV file for use in spreadsheets or other tools. **MINE DETAILS** Tap any mine to see: - Satellite imagery of the mine site - Full location details with distance and bearing from you - Primary, secondary, and tertiary commodities - Mine type, deposit type, and ore minerals - Operator and owner information - Production capacity and facility data (where available) - Discovery year and production history - Data source verification Get driving directions via Apple Maps or share mine details with anyone. **ACTIVE OPERATIONS** Browse mines with current production data, including facility type, production capacity, operators, and investors. Data sourced from USGS Mineral Operations. **12 AUTHORITATIVE DATA SOURCES** - USGS MRDS — Mineral Resources Data System - MSHA — Mine Safety & Health Administration (updated weekly) - USGS USMIN — Critical Minerals Database (2023) - USGS PP1802 — Critical Minerals, Global (2017) - USGS Major Deposits of the World - GeoNames — Global Geographic Database - OpenStreetMap — Community-mapped mine features - PANGAEA — Satellite-verified mining polygons - EGDI — European Geological Data Infrastructure (32 countries) - Natural Resources Canada — Active mines (2025) - Natural Resources Canada — Orphaned & Abandoned Mines (2024) - Geoscience Australia — OZMIN Database - IPIS — DRC Artisanal Mining Sites - World Bank — Africa Mining Projects **CUSTOMIZABLE** - Choose your map marker style: Pin, Diamond, Pick, or Hexagon - Switch between Metric and Imperial units - Display coordinates in Decimal Degrees, Degrees Decimal Minutes, or Degrees Minutes Seconds - Light, Dark, or System appearance **ABOUT** Created by an independent developer, electrical engineer, and world traveller who has visited 99 countries and counting. The original Mines & Minerals app was first built in 2010 out of a genuine interest in geology and exploration. Now rebuilt from the ground up with the best and most up-to-date data available, MineralMap is the definitive mining reference app.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.