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.
App Overview
BigfootMap
BigfootMap is the definitive interactive atlas of Bigfoot sightings — over 16,000 documented encounters unified from every major research database into one searchable, satellite-grade map.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
28 ratings · Below Average
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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for BigfootMap: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Integrate user-generated content with verification features.
Assumption to check: Difficulty in finding accurate sightings data.
Validate with people who use this workflow before building.
Hypothesis 2
Offer advanced filters based on date, location, and user ratings.
Assumption to check: Limited filtering options for sightings.
Validate with people who use this workflow before building.
Hypothesis 3
Implement social features like sharing on social media or in-app notifications.
Assumption to check: Poor user engagement in sharing sightings.
Validate with people who use this workflow before building.
Hypothesis 4
Create forums or discussion boards for users to engage with each other.
Assumption to check: Lack of community interaction.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
BigfootMap is the definitive interactive atlas of Bigfoot sightings — over 16,000 documented encounters unified from every major research database into one searchable, satellite-grade map. Whether you're a serious cryptozoology researcher, a weekend explorer planning your next outing, or simply curious about the patterns behind decades of sighting reports, BigfootMap turns scattered data into actionable insight. WHAT'S INSIDE • 16,000+ sightings from the John Green Database, Mangani, Kilmury, Survey123, and crowd-sourced submissions • 2D and 3D satellite terrain — see exactly what the witnesses saw • Smart clustering that reveals real hotspots at every zoom level • Filter by year, season, source, county, state, and witness type • Live NEXRAD weather radar overlay • Public lands (PAD-US) and surface water (NHD) overlays for fieldwork planning • Tap any sighting for full details: location, witness account, environmental context, distance to nearest water PRO MEMBERSHIP — $9.99/MONTH Unlock the tools serious researchers use: • Analysis Studio — interactive charts of sightings by season, decade, ecoregion, and elevation • Submit your own encounters with photos and detailed reports • AI-powered exploration guides for any region • Data export for offline analysis • Saved locations and bookmarks • Ad-free experience WHY BIGFOOTMAP? Most Bigfoot resources are scattered PDFs, dead websites, and incompatible spreadsheets. BigfootMap is the first project to unify them into a clean, queryable map — built by researchers, for researchers, but accessible to anyone curious about America's most enduring mystery. Subscriptions auto-renew monthly until canceled. Manage in your App Store account settings. Privacy policy: https://bigfootmap.com/privacy Terms of use: https://bigfootmap.com/terms
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Screenshots
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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.
