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.
PhosphorWX is a retro-styled aviation weather station that delivers real-time METAR and TAF data through a distinctive CRT phosphor display.
$0.99 · 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 PhosphorWX: 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 location support and accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Slow loading times for radar features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Missing severe weather alerts
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited unit preferences
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.
PhosphorWX is a retro-styled aviation weather station that delivers real-time METAR and TAF data through a distinctive CRT phosphor display. Browse over 1,000 major airports worldwide, organised by continent. Select any airport to instantly retrieve its current METAR observation, decoded into plain English — wind direction and speed, visibility, weather phenomena, cloud layers, temperature, dewpoint, pressure, and full remarks interpretation. FEATURES • Real-time METAR data from NOAA's Aviation Weather Center • Full METAR decoding — raw text plus human-readable breakdown of every field • TAF forecasts — tap the TAF button to view the terminal aerodrome forecast with decoded forecast periods, change indicators (TEMPO, BECMG, FROM), and probability groups • Flight category display — colour-coded VFR, MVFR, IFR, and LIFR indicators on both the detail view and home screen widget • Animated weather effects — falling rain, snow, hail, fog, and lightning flash overlays respond to actual reported conditions • Wind compass with pulsing directional arrow • Runway Visual Range (RVR) decoding • Detailed remarks interpretation including sea level pressure, precise temperature, precipitation totals, pressure tendency, peak wind, weather event timing, and sensor status • CRT scanline overlay and phosphor glow aesthetic throughout DISPLAY Choose between classic green or amber phosphor themes. The entire interface uses monospaced terminal fonts and retro styling inspired by vintage airport weather displays and 1970s computer terminals. WIDGETS Add METAR data to your home screen with small and medium widgets. The small widget shows key weather parameters at a glance. The medium widget adds a wind direction compass. Both update automatically and sync with your chosen colour theme. FAVOURITES Star your most-used airports for quick access. The favourites tab puts your regular stations one tap away. Long-press any airport in the list to toggle favourite status. DATA All weather data is sourced from aviationweather.gov, operated by NOAA's National Weather Service. This is the same authoritative source used by pilots, airlines, and air traffic control worldwide. Data is US government public domain with no copyright restrictions. METAR observations are cached for 5 minutes to balance freshness with responsible API usage. PhosphorWX is built for aviation enthusiasts, student pilots, weather watchers, and anyone who appreciates both good data and good design. No ads. No subscriptions. No tracking. Just weather.
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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.