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
Madeira Bus
Plan your Madeira bus trips before you arrive and check timetables when mobile signal is weak
$3.99
PRICE
$3.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.3
3 ratings · Below Average
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's included15 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 Madeira Bus: 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
Plan your Madeira bus trips before you arrive and check timetables when mobile signal is weak. Find routes, stops and scheduled departures for Funchal, airport journeys, levada walks and day trips. Plan from anywhere • Choose a place or bus stop as your origin and destination • Explore journeys without granting location access • See bus routes, walking connections and departure times before setting off Timetables that travel with you • Core schedules work offline after installation — tunnels, peaks, no signal • Browse weekday, Saturday, Sunday and public-holiday timetables • Next-bus countdown from the published timetable • Direction toggle for outbound and return • Times marked with ~ are estimates; departures are scheduled times, not live vehicle tracking Explore Madeira by bus • 60+ published routes across Horários do Funchal, CAM and RODOESTE • Airport connections and Aerobus (route 500) — €6.70 per person, cash on board • Monte via 020 / 021 (and 048 from Nazaré/Lido)• Fares screen for GIRO tickets and the separate Aerobus airport fare • Porto Santo ferry timetable and fares • Search by route number, stop, landmark, beach or hotel — EN / DE / FR / PT On the bus • GO: tap "I'm on this bus" and follow your ride — next stop ahead, exit stop marked • Works offline. No account. No sign-up. Core planning and optional Pro Core timetables and trip planning work without an upgrade. Interactive route and journey maps and other Pro extras require an optional paid upgrade. The app shows available passes and prices before purchase. Good to know Madeira Bus is an independent planner, not the official SIGA app. It does not sell bus tickets. Madeira’s bus times and stops can change — always check the latest SIGA timetable and confirm departure and boarding place with local staff or the driver before relying on a journey, especially the last bus or a tight connection. If a stop, route or timetable looks wrong, send feedback from the app. Support: [email protected] Web: https://madeirabus.com • Trailheads and day trips — check trailhead bus options in the app (confirm boarding on the day)
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
Provide detailed route descriptions and real-time tracking.
Assumption to check: Limited route information leading to user frustration
Validate with people who use this workflow before building.
Hypothesis 2
Ensure a consistent design language throughout the app.
Assumption to check: Inconsistent user interface design across screens
Validate with people who use this workflow before building.
Hypothesis 3
Implement an intelligent search algorithm for better results.
Assumption to check: Poor search functionality that yields irrelevant results
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate user feedback options for route changes or issues.
Assumption to check: Lack of user feedback mechanisms for route updates
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
Zustand
React Navigation
React Native Maps
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.
