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
FOX 9 Weather – Radar & Alerts
Stay sky aware with the free FOX 9 Weather app, the easiest way to check your local forecast in the Minneapolis - St
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 2.8
345 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 FOX 9 Weather – Radar & Alerts: 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
Focus on improving the user interface and performance.
Assumption to check: The app has a low user rating (2.8/5)
Validate with people who use this workflow before building.
Hypothesis 2
Optimize the backend and caching mechanisms.
Assumption to check: Frequent crashes and slow loading times
Validate with people who use this workflow before building.
Hypothesis 3
Add more settings for personalized user experiences.
Assumption to check: Limited customization options for users
Validate with people who use this workflow before building.
Hypothesis 4
Provide more comprehensive data such as air quality and severe weather alerts.
Assumption to check: Lack of detailed weather information
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
Stay sky aware with the free FOX 9 Weather app, the easiest way to check your local forecast in the Minneapolis - St. Paul metro area. The user-friendly design allows you to quickly check radar, hourly, and 7-day weather information just by scrolling. Plus, our early weather alerts warn about upcoming storms, keeping you and your family safe. Why Download FOX 9 Weather? • Get your current forecasts at a glance, with a fully integrated GPS to give you accurate conditions wherever you are. • Receive severe storm alerts from the National Weather Service so you can stay safe. • Get school closings information quickly. Snow day anyone? • Interactive radar map includes the past hour of a storm's movement and future radar to see where severe weather is headed. Regional lightning data and high-resolution, satellite cloud imagery are also included. Radar is optimized for in-network and WiFi performance. • Daily and Hourly forecasts update from our station’s computer models. • Add and save your favorite locations, anywhere in the world. • Video forecasts and live streaming direct from the Fox 9 Weather Center, so you can stay informed even during power outages. • Live traffic map for the Minneapolis-St. Paul metro area. • Easily share your weather photos and videos with Fox 9, then look for them on TV during our local news.
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
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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.
