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
Weather Planet Pro
Use your iPhone, iPod Touch or iPad as real Weather station
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.3
3 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.
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 Weather Planet Pro: 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 with additional features like severe weather alerts and air quality index.
Assumption to check: Limited features compared to leading weather apps
Validate with people who use this workflow before building.
Hypothesis 2
Implement more reliable APIs for real-time weather updates.
Assumption to check: Inaccurate location-based data
Validate with people who use this workflow before building.
Hypothesis 3
Simplify design and improve navigation for ease of use.
Assumption to check: Cluttered UI with poor usability
Validate with people who use this workflow before building.
Hypothesis 4
Introduce tiered subscriptions for advanced features and ad-free experience.
Assumption to check: Lacks a subscription model for premium features
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
Use your iPhone, iPod Touch or iPad as real Weather station. Big Temperature display, windchill temperature, humidity, wind speed, wind direction, barometer, moonphases and more values can hardly be desired. With this design-weather planet you can have fun with the weather. A 4-days weather forecast and more is built-in. Displaying weather data: - Shows actual weather data - location determination > enter city name or use GPS - Shows the Station name resp. the town - 8 Design-backgrounds: clouds, sun, rain, mist, snow, Frost etc? - Temperature in °C or °F - Windchill Temperature - Humidity in % - Wind force (+ Windcone/sock in 5 steps) - Compass displaying the wind direction - Air pressure (+ Balloon & animated Rotator) - Actual moonphases displaying - Date + time of the weather data - Simulation of 8 Weather sceneries, Windsock, Balloon (Air pressure) - Data: Internet, online (only a few Byte) - Map the actual location of the selected weather-station Settings: - 6 Cities with Test - Temperature in °C or °F - Barometer in mb or hPa or Torr or psi or inHg - Wind speed in kph or mph or kn or meter per second or Bft More features: - Button for updating Data - Animation (fade in of Background, Windsock, Balloon, Compass) - 4 Day Preview, Trend and more - more precise Weather - At snow: animated snowfall - View the Drewpoint temperature - moonphases - Wiki City (Informations of your city) - Ice Forecast (for your car windshield) - Barometer History (the last 6 values) - Adapted for iPad, iPod, iPhone 4, 5, 6, 7, 8... - Universal App (work on iPhone, iPod and iPad)
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.
