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
Viniou – Wine Cellar Manager
Viniou – The ultimate app to manage your wine cellar
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 5.0
8 ratings · Top 5%
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 Viniou – Wine Cellar Manager: map the core Food & Drink 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
Provide detailed descriptions and tasting notes for each wine.
Assumption to check: Limited wine information and descriptions
Validate with people who use this workflow before building.
Hypothesis 2
Enable users to share their collections and recommendations with friends.
Assumption to check: Lack of social features for sharing collections
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate links to buy wines directly from retailers.
Assumption to check: No integration with wine retailers for purchasing
Validate with people who use this workflow before building.
Hypothesis 4
Implement categorization and advanced sorting features for better organization.
Assumption to check: Difficulties managing large collections
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
Viniou – The ultimate app to manage your wine cellar Transform your wine cellar management experience with Viniou, an intuitive and comprehensive app designed for both enthusiasts and passionate wine lovers. Say goodbye to complicated spreadsheets and forgotten bottles: Viniou helps you maintain a clear and precise view of your cellar at any time. Manage, organize, plan ahead. With ease. Optimal organization: Easily sort your wines by type, region, vintage, packaging, or location in your cellar. Always up-to-date inventory: Track the quantities of each bottle accurately, quickly see what’s in stock, and receive alerts for bottles ready to drink. Multi-platform: Access your cellar from both your smartphone and your computer. Your data syncs automatically. Powerful tools to better manage your wines: - Label scanning: Add a wine to your cellar simply by scanning its label. No more manual data entry. - Aging phases: Discover the perfect time to drink your bottles with our maturity calculation tool. A real help to enjoy your wines at their best. - Value tracking: Check the evolution of your cellar’s market value, updated monthly with real market data. - Personalized statistics: Visualize your cellar by region, type, color, or format and gain a better understanding of your buying and consumption habits. And much more… - Custom lists: Want to keep track of your wishes or favorite wines? Create lists of wines to buy, taste, or gift. - Smart tagging: Add tags to quickly filter your bottles (gifts, drink soon, special events, etc.). - Shared account: Manage your cellar with others by sharing access to your inventory. - Export to PDF or CSV: Export your cellar inventory with one click to print, share, or save. - Smart search: Find a bottle instantly with our multi-criteria search engine. - Unlimited photos: Add your own photos of bottles, labels, or storage locations to keep a visual record of your cellar. Why choose Viniou? Because your cellar deserves more than an Excel file. Viniou offers you a smooth, modern, and secure experience designed to save you time, prevent mistakes, and let you fully enjoy your bottles. Download Viniou now and give your wine cellar a new dimension.
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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
Zustand
Axios
react-navigation
expo-image-picker
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.
