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
Instant USGS Earthquake Pro
The Next Generation of World Earthquakes and NOAA Radar app is here (This app is part of the Universal Purchase
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.5
2 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 Instant USGS Earthquake Pro: map the core Utilities 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
Implement an auto-refresh feature for live updates.
Assumption to check: Limited real-time earthquake data updates.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance UI with modern design principles for better usability.
Assumption to check: User interface is not user-friendly.
Validate with people who use this workflow before building.
Hypothesis 3
Provide comprehensive details and historical data for each earthquake.
Assumption to check: Lack of detailed earthquake information.
Validate with people who use this workflow before building.
Hypothesis 4
Focus on stability and thorough testing to improve user experience.
Assumption to check: Poor ratings due to bugs and crashes.
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
The Next Generation of World Earthquakes and NOAA Radar app is here (This app is part of the Universal Purchase. With one purchase, you will be able to see the NOAA Alerts on your iOS, Watch OS and Apple TV devices.). World Earthquakes provide you the latest active Earthquake alert and different colors are assigned: - EQ 4.0 or larger: red - EQ 3.0 or larger: purple - EQ 2.0 or larger: orange - EQ 1.0 or larger: blue - All other EQ: green iOS App Quick Started: > By default, alerts are loading once the app is launched. Earthquake Alerts are listed based upon "Date". Once alerts are loaded, you can select "Importance" on the top to list the alerts based upon the severity. Select any alert to see the alert details. > Click on the Map tab and Alerts around the globe are listed. Zoom in/out and select any alert to see the latest weather information. Please notice alerts are being loaded dynamically, you can use "Refresh" button to refresh the latest alerts on the map. If you prefer to view alerts in different map type (Normal, Satellite, Hybrid and Flyover). Click on the "Map Type" to start to switch to different map type. > Click on the Alert Categories/Filters to select all categories or one specific category, then only alerts for the selected category will be listed. Click on "Refresh" button on the Map view and only selected category will appear on the map. > US NOAA Radar images will be loaded when the app is launched and will be refreshed every 10 minutes. And you are ready to see the latest real time radar images on the map. Zoom in and out to see the whether across multiple states. Click on the "Radar" button to enable/disable radar images. Slide the slider to change the transparency of radar images. > To see the Alerts in 3D View, follow the steps below: 1. By default, Select the Map tab and 3D View is enabled and you should be able to see the Alerts in 3D View. 2. You can use two-fingers gesture to change viewing angles: zoom in/out, rotate, swipe up/down for 3D View 3. Click on any Alert and the app will automatically zoom into the alert area. Click on the information button to see the alert details. Watch App Quick Started: > Launch the Watch App and the app will communicate with the iOS App to get the nearest Earthquake information and also notify the iOS App to select and view the Earthquake. Click on the "Nearest Earthquake" button if you would like to search the nearest Earthquake again. Introduction: This app is the Next Generation of World Earthquakes and NOAA Radar app by integrating the following technologies and data together: - The latest Apple MapKit features such as Traffic, Buildings, POI and 3D Model - Apple Watch Integration with iPhone. - Apple TV integration (Universal Purchase: one purchase to get the app on iOS, Apple Watch and Apple TV) - NOAA Alerts - Real Time NOAA Radar - Databases with built in information. This app provides the following features: - The first app to integrate both World Earthquakes and the latest national Radar images together. - The first app to provide World Earthquakes and Radar images in 3D view. - This app provides the Apple Watch Integration - This app will provide Apple TV integration.
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
axios
react-navigation
react-native-maps
Zustand
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.
