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
NOAA Weather Radar
NOAA Weather Radar — Live Radar, Instant Alerts
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
533 ratings · Top 15%
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 included18 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 NOAA Weather Radar: 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
Enhance radar features with more layers and customization options.
Assumption to check: Limited radar map features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Ensure responsive design and smoother transitions between screens.
Assumption to check: Inconsistent user experience across devices
Validate with people who use this workflow before building.
Hypothesis 3
Implement smarter notification settings based on user preferences.
Assumption to check: Notifications can be overwhelming
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to organize and categorize saved locations more effectively.
Assumption to check: Limited customization of saved locations
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
NOAA Weather Radar — Live Radar, Instant Alerts Track severe weather in real time with animated NOAA radar, and get National Weather Service alerts pushed straight to your device — even when the app is closed and your phone is locked. One universal purchase works across all your iPhones and iPads. NEW: Synthesized Weather Stations Hear a spoken weather forecast for locations beyond traditional NOAA radio coverage. Tap any station on the map to start listening, with continuous looping playback. Live, Animated Radar Zoom, pan, and scrub through recent radar history with smooth, responsive animation. Choose from multiple radar color schemes and add nowcast radar with Advanced Radar Layers. See storm reports plotted right on the map. Instant Weather Alerts Free push notifications for watches, warnings, and advisories Set alerts for one location or several at once SPC severe weather outlooks Share any alert via email Forecasts & Conditions Get current conditions and a multi-day forecast for any radar location you're viewing, or based on your current GPS location. Includes marine forecasts. Built for Everyday Use Clean, modern interface designed for quick access Remembers how you left the map — panels, layers, and all — between sessions Questions or issues? Reach out any time — we read every email and respond quickly.
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
Supabase
react-navigation
axios
react-native-reanimated
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.
