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
MaCave — Cave à Vin
Keep track of your wines effortlessly with MaCave, your ultimate wine and cellar management app.
$8.99 · In-app purchases
PRICE
$8.99
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/
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 MaCave — Cave à Vin: 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
Enhance discovery with personalized recommendations based on user's taste.
Assumption to check: Limited wine discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced search and filtering options for better organization.
Assumption to check: Difficult to manage large collections
Validate with people who use this workflow before building.
Hypothesis 3
Introduce social sharing for tasting notes and collections.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Partner with retailers for in-app purchases and delivery options.
Assumption to check: No integration with wine retailers
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
Keep track of your wines effortlessly with MaCave, your ultimate wine and cellar management app. • Comprehensive Wine Management: Record details like wine name, type, region, subregion, grape varieties, pairings, ideal drink dates, and more. • Bottle Tracking: Add, remove, or mark bottles as consumed (drunk or gifted). Set reminders to open bottles at the perfect time. • Cellar Organization: Manage your cellars and shelves with an intuitive graphical interface, making it easy to locate stored bottles. • Winery Integration: Save winery details with a shortcut to navigate directly to their location. • Insightful Statistics: Monitor your purchases, stock value, consumption trends, and other valuable metrics. • Seamless Data Import: Easily bring in your existing wine records from other apps, so you never have to start from scratch. • User-Friendly Design: Enjoy a simple, modern interface with light and dark themes to suit your preferences. • Spotlight Integration: Quickly find wineries details directly from your home screen using Spotlight search, making it easier to access your collection without opening the app. • Full Data Ownership: Export your entire database to a standard JSON file for complete control over your information — no cloud lock-in! ** MaCave is created by an independent developer. If you enjoy using the app, please consider leaving a review. **
Written user reviews are not shown here. Check current App Store reviews >
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.
