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
Audio Guide Louvre Museum
When it comes to the Louvre, you need a knowledgeable companion to take you around with real expertise
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
2 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 included18 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 Audio Guide Louvre Museum: 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
Include comprehensive audio guides for more exhibits.
Assumption to check: Limited audio guide options compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Improve UI with clearer navigation and layout.
Assumption to check: User interface is not user-friendly
Validate with people who use this workflow before building.
Hypothesis 3
Offer subscription for unlimited access to all guides.
Assumption to check: In-app purchases for each guide can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download guides for offline listening.
Assumption to check: No offline access to audio guides
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
When it comes to the Louvre, you need a knowledgeable companion to take you around with real expertise. Thankfully, the Buddy offers the choicest tours in an easily navigable format, and is the best way to navigate through the museum without losing your way. Now you can tour Louvre with an easy audio guide that puts hundreds of highlights at your fingertips. Inside the app: - Room to room navigation - Interactive maps with top highlights - Top Tours - Astounding images from all viewpoints - Day planner to set your own route - Built in audio - download once and use anytime! With these features, you can * Enjoy room-by-room navigation at your fingertips! * Plan your itinerary around to save invaluable time! * Embark on one of the recommended guided tours. * Tune into the audio descriptions of world-famous works. * Enjoy high-resolution images from various angles. * Get close to your favourite work and artist. * Read insightful descriptions with amazing trivia Once downloaded, you can use the app anytime, anywhere without internet connectivity. The app provides a number of remarkable tours of the Museum, both long and short, where within the space of a few hours, you can cover great ground, navigate the length and breadth of the museum without getting lost. The app also provides you with the best three hour tour of the museum, which is basically a superb itinerary covering its top 15 highlights. But if you would like to deep dive, there are over 1000 highlights to choose from that include: - Greek antiquities, Venus de Milo, Victory of Samothrace - Roman sculptures: Borghese gladiator, Borghese vase, Michelangelo's slaves - Italian Renaissance paintings: Mona Lisa, Wedding feast at Cana - North European paintings by Rembrandt and Van Duck - Large format French paintings by Delacroix and Ingres - Ancient Egyptian sarcophagi, mummies, monuments and scriptures - The famous code of Hammurabi - Decorative arts including Napoleon III apartments, arts of Africa and Islam The comprehensive guide puts U in the middle of Louvre! Get, Set, Go with hundreds of highlights to explore.
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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
react-navigation
axios
zustand
react-native-maps
BUILD KIT DIFFICULTY
Advanced
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.
