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
Père Lachaise
Explore the world's most famous cemetery like never before.
$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.
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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 included16 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 Père Lachaise: 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
Implement advanced filters and sorting options.
Assumption to check: Limited search functionality and filters.
Validate with people who use this workflow before building.
Hypothesis 2
Add a chat feature for direct communication.
Assumption to check: No in-app messaging between hosts and users.
Validate with people who use this workflow before building.
Hypothesis 3
Create a robust review system for users.
Assumption to check: Lack of user reviews and ratings for listings.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance the booking flow with detailed confirmation screens.
Assumption to check: Inadequate booking confirmation and details.
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 the world's most famous cemetery like never before. Père Lachaise — Grave Map & Guide is the ultimate interactive guide to Paris's iconic Cimetière du Père-Lachaise. Navigate more than 300 notable graves, discover the fascinating life stories of legends buried there, and plan your perfect walking tour — all in one beautifully designed app. INTERACTIVE MAP Find any grave instantly with our live, GPS-powered map. Browse hundreds of marked graves, filter by popularity, and zoom straight to the exact location of your favourite icons. RICH BIOGRAPHY & WIKIPEDIA CONTENT Every grave comes loaded with full Wikipedia biographies, birth and death details, occupations, nationalities, photo galleries, and more — available in multiple languages including English, French, Dutch, and German. SELF-GUIDED WALKING TOUR Activate the built-in route planner to create an optimised walking tour connecting the most celebrated graves. Perfect for first-time visitors and history lovers alike. PHOTO GALLERIES Browse stunning Wikimedia Commons photo galleries for hundreds of notable personalities — from artists and musicians to writers, politicians, and military leaders. FAVOURITES Save the graves you want to visit and build your personal must-see list before your trip to Paris. MULTILINGUAL Full support for English, French, Dutch, and German — automatically matched to your device language. ALWAYS UP TO DATE All content is sourced live from OpenStreetMap, Wikipedia, and Wikidata — ensuring accurate, current information every time you visit. WHO IS THIS APP FOR? - Tourists visiting Paris and Père Lachaise cemetery - History and culture enthusiasts - Music, art, and literature lovers - Self-guided tour explorers - Genealogy researchers FAMOUS GRAVES INCLUDE: Jim Morrison · Édith Piaf · Oscar Wilde · Frédéric Chopin · Marcel Proust · Molière · Georges Bizet · Isadora Duncan · and hundreds more. No account needed. No subscription. Just open and 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
Supabase
Axios
React Navigation
Async Storage
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.
