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
MetarNow
Tired of scrolling through endless menus on your aviation weather apps? MetarNow delivers real-time aviation weather instantly
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 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 MetarNow: 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
Implement a broader data source to improve coverage.
Assumption to check: Limited weather data for some locations
Validate with people who use this workflow before building.
Hypothesis 2
Add push notifications for severe weather alerts.
Assumption to check: No severe weather alerts
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to set favorites and customize alerts.
Assumption to check: Lack of user personalization options
Validate with people who use this workflow before building.
Hypothesis 4
Simplify UI with better spacing and clearer navigation.
Assumption to check: User interface may feel cluttered
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
Tired of scrolling through endless menus on your aviation weather apps? MetarNow delivers real-time aviation weather instantly. Simple and intuitive — get the weather you need in just one or two taps. Tap on the "Find Nearest Station" button and you will have the most current METAR, TAF, and D-ATIS (if available) for the station closest to you. Also included will be the mileage and compass direction to the nearest station, the full name of the airport, and the time of the METAR update in local and Zulu times. Additionally, you may search for any airport by airport ID or airport name and obtain its latest METAR as well, and any searched station can be added to a Saved Station list. METAR and TAF data can be read either as raw or decoded. Weather data is sourced directly from airport weather stations, providing the most accurate and up-to-date conditions for pilots. Designed for pilots and aviation enthusiasts who need accurate weather at a glance. Requires WiFi or cellular data connection. (Note: add "K" in front of airport identifiers that start with letters or numbers other than "K". For example, O69 will be searched as KO69, 6B0 will be searched as K6B0, etc.) DISCLAIMER: MetarNow is intended for informational purposes only and does not replace a complete weather briefing. Always obtain a full weather briefing from an official source before flight.
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
Expo Location
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.
