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
QuakeSense Earthquake Map
QuakeSense helps you explore recently reported earthquakes on an interactive map and monitor the places that matter to you using USGS data.
$2.99 · In-app purchases
PRICE
$2.99
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included15 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 QuakeSense Earthquake Map: map the core Weather 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
Provide more comprehensive data with visual aids and alerts.
Assumption to check: Lack of detailed earthquake data in real-time
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate user preferences for notifications and earthquake alerts.
Assumption to check: Poor user engagement due to lack of personalization
Validate with people who use this workflow before building.
Hypothesis 3
Enhance the map with zooming, filtering, and custom overlays.
Assumption to check: Limited map interaction features
Validate with people who use this workflow before building.
Hypothesis 4
Include global data with customizable location tracking.
Assumption to check: Inadequate support for global earthquake data
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
QuakeSense helps you explore recently reported earthquakes on an interactive map and monitor the places that matter to you using USGS data. SEE RECENT EARTHQUAKES • View USGS-reported earthquakes on a worldwide map • Switch between nearby and worldwide activity • Filter by magnitude and by the past hour, 24 hours, or 7 days • Use color- and size-coded map markers to scan activity quickly UNDERSTAND EACH EVENT • Check magnitude, location, time, depth, and distance from your location • Inspect the epicenter on the map • Open the official USGS event page or Maps • Share an earthquake report with others MONITOR SAVED PLACES • Add places such as home, work, or travel destinations • Choose a minimum magnitude and distance radius for each place • Check recent matches against the latest 24-hour USGS feed • Receive local notifications for newly matched events when QuakeSense refreshes earthquake data and notification permission is enabled PRIVACY AND DATA Location access is optional and used to calculate distance and evaluate proximity rules. Saved place rules are stored on your device. No account is required, and the app does not include ads. DATA SOURCE AND SAFETY Earthquake information is provided by the United States Geological Survey (USGS). Report availability and place names depend on the public USGS feed. QuakeSense monitors reported earthquakes. It does not predict earthquakes and is not an emergency alert service. Always follow official local authorities for safety guidance.
Written user reviews are not shown here. Check current App Store reviews >
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
react-native-maps
axios
@react-navigation/native
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.
