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.
Welcome on board to the WindHub app!
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for WindHub: Sailing Weather: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Welcome on board to the WindHub app! Built for mariners by mariners, it displays necessary weather and marine info in a neat and simple way. The detailed map will help to plan cruises, races, or nice fishing. Accurate forecasts and real-time data includes: • atmospheric pressure map with marked highs and lows • weather fronts • wind and gust forecasts • waves info • tides and currents • rain radar and precise nowcast • live wind information from 30000+ weather stations Top-notch weather data is provided by professionals - official weather forecasting services: NOAA, Meteo-France, Deutscher Wetterdienst, ECMWF and others. High-resolution forecast for Europe and East Asia is calculated by our team. And it’s not just the weather - marinas have contact information so you can call or email the harbor master to book a berth or to ask about amenities. Special treat for sailors and boaters in the US is the option to display nautical charts. It shows water depths, dangers, anchorages, and other features. The provided nautical charts aren’t for navigation purposes. Using the app is easy. You can change units, wind speed display (animation or wind barbs), and weather data displayed on the map. Activate “Traffic Saver Mode” if you experience low reception signal. You can rely on Windhub to help you make the right decision. We are constantly improving the app and adding new features. We’d love to hear your feedback and ideas at [email protected]. Terms of Use: https://windhub.com/termsofuse.pdf
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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
Assumption to check: Limited detailed weather information compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent data refresh rates
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user-friendly alerts for severe weather
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited map features
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.