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
FireMapper
FireMapper is designed for firefighters for quickly generating bushfire and other incident maps
$22.99 · In-app purchases
PRICE
$22.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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 FireMapper: map the core Navigation 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
Simplify navigation and onboarding process.
Assumption to check: Complex user interface can be overwhelming for new users.
Validate with people who use this workflow before building.
Hypothesis 2
Implement full offline maps functionality.
Assumption to check: Limited offline capabilities for maps.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance reliability and accuracy of traffic overlay.
Assumption to check: Inconsistent performance in real-time traffic updates.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a free tier or trial period to increase user adoption.
Assumption to check: High price point may deter users from trying the app.
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
FireMapper is designed for firefighters for quickly generating bushfire and other incident maps. The applications provides a simple interface for drawing maps and exporting via Email. Maps are stored on the local device and can be created or used offline. No internet connection is required for collecting data. FACEBOOK & SUPPORT: Like us on Facebook to be notified of future updates and developments. http://www.facebook.com/FireMapperApp MAP EXPORT FORMATS: Multiple points can be drawn on the map and exported in the same email. The map data can be exported as: * GPX (suitable for ArcGIS, MapDesk and other popular GIS products, QGIS) * KML (suitable for Google Maps & Google Earth) * CSV (suitable for Microsoft Excel & Google Spreadsheets) * JPG (photo of the map) You can also send points & lines as a text message. GPS CAMERA: Take geo-referenced photos and display the location and bearing on the map. GPS RECORDING: FireMapper supports GPS recording in the background. Continued use of GPS running in the background can dramatically decrease battery life. BUSHFIRE SYMBOLS: This version contains bush firefighting symbols that are commonly used in Australia, USA & Canada with support for: * National All Hazards Symbology Set * USA Interagency Wildfire Point Symbols Including the following icons: Hydrant, Water Point, Fire Origin, Spot Fire, Aerial Ignition, Hotspot, Defendable/Not Defendable Asset, Threatened Asset, Indigenous Site, Historic Site, Hazmat,Flora/Fauna, Airbase, Helibase, Helibase,Smoker Standing/Down,Tree Down, Medical, Mobile Weather Station, Portable Communications, Access Point, Control Point, Road Closure, RAFT, Drop Zone, Assembly area, Staging area, Base camp, Control Centre, Divisonal/Sector Command, Evacuation Area/Center, Escape Route, Refuge area, Property damage and more.... LOCATION FORMATS: -Latitude/Longitude (Decimal Degrees and Degree Minutes/Aviation) - UTM Coordinates - 1:25 000, 1:50 000 & 1:100 000 map sheet references - UBD Map References (Sydney, Canberra, Adelaide, Perth) INTEGRATED SEARCH: Search by address, suburb, latitude/longitude, utm coordinates, grid references, place name, point type and more. OFFLINE SUPPORT: Maps can be created offline without an internet connection. Map layers are cached for offline support MULTIPLE MAP LAYERS: - Standard - Satellite/Hybrid - Terrain/Topographic - US Topographic - Australian Topographic - NZ Topographic and more....
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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.
SUGGESTED BUILD STACK
React Native
Expo
axios
react-navigation
@react-native-async-storage/async-storage
expo-location
BUILD KIT DIFFICULTY
Intermediate
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.
