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.
BARCELONA, the new app in the Art & Culture series, is something different in tourism: a cultural travel guide that offers comprehensive, expert coverage of all the sights and attractions, all the things to do and see...
$5.99 · In-app purchases
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.
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.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Barcelona Art & Culture: 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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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
Assumption to check: Limited event filtering options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent loading times for images
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of offline access to saved events
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited user reviews
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
BARCELONA, the new app in the Art & Culture series, is something different in tourism: a cultural travel guide that offers comprehensive, expert coverage of all the sights and attractions, all the things to do and see, complete practical information and detailed maps. BARCELONA is the indispensable guide to Europe’s most exciting city, for exploring the depth and richness of its history and its vibrant life of today. We don’t do hotels and restaurants and shopping; instead, we offer a cultural companion that can enrich your visit like no other guide, on paper or pixels. BARCELONA is where Europe goes to play. She’s a city that sparkles and fizzes, making the world watch just to see what she’ll do next. Plunge straight into her buzzing heart with this remarkably in-depth app by two old pros who have been writing about the city for decades: • Sparkling insights and handy tips on visiting 130 famous and secret sights, from Antoní Gaudí’s Sagrada Família to a bomb shelter from the Civil War • Up-to-date opening hours, prices, and details of all sites • Day trips—all you need to know to visit Sitges, Monserrat, the Dalí museum in Figueres, Girona, PortAventura (Spain's biggest theme park) and Tarragona • Biographies of all the great Modernista artists and architects • Fun alternatives for exploring Barcelona differently by day and night: with a local on a bespoke tour, on a scooter, or in a three-wheel GoCar • Unusual sidelights—discover Barcelona's secret fixation with bats and learn how truly nutty the great Gaudí really was • Walking tours of Barcelona’s most fascinating and up-and-coming neighbourhoods • Discover Barcelona’s vibrant music scene from opera to Manu Chao’s Rumba de Barcelona, along with the best venues and where to buy tickets • A menu decoder and a list of useful phrases in Spanish and Catalan • Up-to-date practical info on how to get around the city, and how to save money with special offers and discount cards • Great places to take the kids • A complete list of the important traditional and cultural festivals • Comprehensive search function lets you quickly find anything in the text About the Authors Authors of seven books on Spain and Catalonia, Dana Facaros and Michael Pauls (www.facarospauls.com) have been around the block a few times. After a career as travel writers spanning centuries, they know the Mediterranean like a flea knows a dog. Currently installed just over the Pyrenees in southwest France, Barcelona is where they go for a dirty weekend and some stuffed squids.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.