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 Office+
Weather Office+ provides accurate local weather data and forecasts for Canada and the USA.
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
41 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Weather Office+: 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
Offer advanced radar features and customization.
Assumption to check: Limited radar functionality compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify and clarify subscription tiers and benefits.
Assumption to check: In-app purchase options can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Improve location accuracy and error handling.
Assumption to check: Occasional location fetching issues.
Validate with people who use this workflow before building.
Hypothesis 4
Implement customizable widgets for home screen.
Assumption to check: Lacks widgets for quick access.
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
Weather Office+ provides accurate local weather data and forecasts for Canada and the USA. Features: - A clean layout that gives you the information you need, with no clutter. - Current Location site that updates as you move. - Short-term hourly forecast graph (Temperature, Wind Speed, Precipitation Amount, and Probability of Precipitation). - Radar (DPQPE/N1P). - Watches, warnings, and alerts, with local notifications. - Forecast Widget with small, medium, and large layouts for current conditions, hourly timeline, and multi-day forecast. - Weather Office+ is designed to be easy to use, with stable, fast, and reliable performance. Weather data and forecasts are based on Environment Canada and/or NOAA/NWS sources. * Radar and hourly graphs are not available in all locations. ** Notifications require Background App Refresh and are best effort.
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
Zustand
React Navigation
Geoapify API
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.
