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
Vestiaire Collective: Buy+Sell
Vestiaire Collective: Buy, Sell & Consign Designer Fashion
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
15,711 ratings · Top 15%
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 included17 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 Vestiaire Collective: Buy+Sell: map the core Shopping 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 caching strategies and optimize image loading.
Assumption to check: Users often complain about slow loading times for images and product data.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance search functionality with better filtering options and AI suggestions.
Assumption to check: Difficulties in searching for specific items due to poorly defined categories.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the selling process with a more guided, user-friendly interface.
Assumption to check: Users face issues with the selling process and listing items.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate more payment methods like Google Pay and PayPal.
Assumption to check: Limited payment options which frustrate users.
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
Vestiaire Collective: Buy, Sell & Consign Designer Fashion Join the global community redefining luxury resale. With Vestiaire Collective, you can buy, sell, or consign authenticated designer pieces — from iconic bags and footwear to rare vintage finds, clothing, accessories, and watches. Each week we list thousands of new items from top labels like Gucci, Louis Vuitton, Prada, Dior, Burberry, Fendi, Balenciaga, Saint Laurent, and more — including exclusive collaborations via our Brand Partner program. Why buy with Vestiaire Collective? - Discover unique fashion and vintage finds you won’t see elsewhere. - Shop authenticated designer bags, clothing, shoes, and accessories — every piece is verified through our multi-step digital + human authentication process. - Browse Brand Approved listings: items jointly approved with luxury brands for added trust and provenance. - Negotiate directly with sellers or choose interest-free payment options. - Support circular fashion and sustainable style. Why sell or consign on Vestiaire Collective? - Reach a curated global audience of fashion lovers ready to buy designer and vintage pieces. - Consignment service: we manage everything — from photos and descriptions to pricing, storage, and shipping — so you can sell hands-free. - Get up to 80-85 % of the final price on consigned items, with no upfront fees. - List directly too: upload your item, ship for free, and we authenticate before shipping to buyer. - Free prepaid shipping labels, secure transactions, and fast payment once your item passes authentication. - Even luxury brands partner with us: Brand Approved allows brands to authorize resale of their pieces via Vestiaire, enhancing trust and resale value. - Our authentication team trains with major brands and receives support from them to ensure rigorous standards. A trusted, sustainable fashion movement Vestiaire Collective is more than a marketplace — it’s a movement built on trust, curation, and circular fashion. We’re pioneers in authentication, verifying via digital and expert human checks to stay ahead of counterfeiters. Whether you’re browsing for that statement vintage Hermès bag or consigning a Saint Laurent jacket, join millions of fashion activists shaping the future of style. Download Vestiaire Collective and start buying, selling, or consigning designer fashion with confidence — your next luxury item or sale is just a tap away. From vintage treasures to modern designers — experience the smarter way to shop and sell luxury.
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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
TypeScript
React Navigation
Zustand
BUILD KIT DIFFICULTY
Expert
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.
