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
World Airports
Explore over 9,300 airports, aerodromes and airfields worldwide with a beautifully designed aviation-themed interface built for pilots and enthusiasts alike.
$0.99 · In-app purchases
PRICE
$0.99
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.
Build your own version
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 included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 World Airports: map the core Travel 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
Enhance the detail and depth of airport amenities and services.
Assumption to check: Limited airport information compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a clean, modern UI with intuitive navigation.
Assumption to check: Poor user interface that lacks modern design.
Validate with people who use this workflow before building.
Hypothesis 3
Provide offline caching of airport details for easy access.
Assumption to check: Lack of offline access to airport information.
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate a rating and review system for users to share experiences.
Assumption to check: No user reviews or ratings for airports.
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
Explore over 9,300 airports, aerodromes and airfields worldwide with a beautifully designed aviation-themed interface built for pilots and enthusiasts alike. Instant Universal Search Type anything into the search bar and results appear instantly. Search across airport name, city, country, ICAO code or IATA code — all at once. Matching text is highlighted so you can see exactly why each result appeared. Comprehensive Airport Details Every airport displays its country flag, municipality, altitude, ICAO and IATA codes, and precise latitude/longitude coordinates — all at a glance. Runway Information View detailed runway data for thousands of airports including: Runway designators (e.g. 10L/28R) Length and width in feet Surface type (Asphalt, Concrete, Grass, Gravel and more) Lighting status Closed runway indicators Airport Frequencies Radio frequencies listed by type — ATIS, Tower, Ground, Approach, Departure, UNICOM and more — sorted in the order you'd use them, with frequencies displayed in standard aviation format. Interactive Maps Each airport includes a full interactive map with pinch-to-zoom. Switch between Standard and Satellite views to see the surrounding area and terrain in detail. Cockpit-Inspired Design A dark aviation-themed interface with amber and green cockpit display colours. Monospaced typography for codes and frequencies. Designed to feel familiar to anyone who has sat behind an instrument panel. All airport data is bundled within the app — no internet connection required. Perfect for use in the cockpit, on the ramp, or wherever your curiosity takes you.
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.
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Axios
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.
