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.
Visualized METAR and TAF weather information for all airports in the world
$5.99 · 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 Metar-Taf: 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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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 free features
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult to navigate for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Slow loading times for data
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High price point for in-app purchases
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Visualized METAR and TAF weather information for all airports in the world. Concise summary of everything you need to know about today's aviation weather. METAR features: - Visualized in easy to understand and colourful metrics - Weather symbols for significant weather and clouds, like in a non-aviation weather report - Crosswind calculations, by combining METAR and runway information - Flight rules category: VFR, MVFR, IFR, LIFR - Read out by text-to-speech available, listen to a decoded METAR while doing other things TAF features: - TAF broken down and displayed per hour in a table - Show sunrise/sunset, minimum and maximum temperature Keeping track: - Add your favorite stations to the list, see their weather at a glance - Get observations near your location - Find stations in the interactive map with weather codes - Search airports by ICAO code or name History: - Graphs with weather trends today and yesterday: temperature, visibility, wind speed, QNH - METAR history for the last hours and link to more on the website Airport information: - See information about the airports, like runway directions, elevation, location - If the airport doesn't report a METAR, the nearest station used for calculations Calculations: - All units are customizable units: speed (knots, km/h, m/s, mph), altitude (meters/feet), visibility (kilometers/miles), temperature (Celcius/Fahrenheit) and air pressure (Hectopascal, Inch Hg) - Times are converted to the local time for each airport - Sunrise and sunset are calculated based on the airports latitude/longitude General: - METAR, TAF and airport data are automatically saved for offline use - Available in 6 languages: English, Dutch, Spanish, Portuguese, German and French
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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.