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
Layover
Got a layover? Make it count.
$2.99 · In-app purchases
PRICE
$2.99
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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Combine features and design from your favorite apps.
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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 included
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 Layover: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Got a layover? Make it count. Layover is your pocket guide to 37 major airports worldwide. Whether you have 2 hours or 12, find the best food, hidden gems, quick city trips, and things to do — all tailored to your available time. WHAT'S INSIDE 37 airports across Europe, Asia, North America, South America, the Middle East, Africa, and Oceania Hundreds of hand-curated activities: food, city trips, airport highlights, shopping, rest spots, and hidden gems Filter by layover duration (under 2h, 2-4h, 4-8h, 8h+) and time of day (daytime, evening, overnight) Every activity includes cost, time needed, how to get there, and insider tips One-tap directions in Apple Maps WORKS OFFLINE All content is bundled in the app — no internet required. Perfect for when you've just landed and don't have Wi-Fi yet. SMART FEATURES GPS auto-detects your airport so you can start browsing instantly Weather-aware: bad weather? Indoor activities are sorted first Search by airport name or IATA code NO NONSENSE No account required. No sign-up, no email, no tracking No ads. No subscriptions. No in-app purchases Pay once, get everything — including all future airport additions AIRPORTS INCLUDED Abu Dhabi (AUH) · Amsterdam (AMS) · Atlanta (ATL) · Auckland (AKL) · Bangkok (BKK) · Buenos Aires (EZE) · Cairo (CAI) · Cape Town (CPT) · Chicago (ORD) · Dallas (DFW) · Denver (DEN) · Doha (DOH) · Dubai (DXB) · Frankfurt (FRA) · Hong Kong (HKG) · Istanbul (IST) · Johannesburg (JNB) · Kuala Lumpur (KUL) · Lisbon (LIS) · London Heathrow (LHR) · Los Angeles (LAX) · Madrid (MAD) · Melbourne (MEL) · Miami (MIA) · Munich (MUC) · New York (JFK) · Paris CDG · San Francisco (SFO) · São Paulo (GRU) · Seoul (ICN) · Singapore (SIN) · Sydney (SYD) · Taipei (TPE) · Tokyo Haneda (HND) · Tokyo Narita (NRT) · Toronto (YYZ) · Vancouver (YVR)
Written user reviews are not shown here. Check current App Store reviews >
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 clean, user-friendly design with straightforward navigation.
Assumption to check: Users often find travel apps cluttered and hard to navigate.
Validate with people who use this workflow before building.
Hypothesis 2
Provide advanced filtering options to refine search results.
Assumption to check: Common issue with travel apps is the lack of comprehensive filtering options.
Validate with people who use this workflow before building.
Hypothesis 3
Ensure a reliable booking confirmation system with immediate feedback.
Assumption to check: Users may encounter issues with booking confirmations.
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate a robust messaging feature for host-guest communication.
Assumption to check: In-app communication can be limited.
Validate with people who use this workflow before building.
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
Supabase
axios
react-navigation
react-native-paper
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
