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
Wine Folly Plus
Wine Folly+ puts the wine world in your pocket
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.8
4 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 included15 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 Wine Folly Plus: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Wine Folly+ puts the wine world in your pocket. Explore Wine Folly's signature interactive maps, learn to taste and pair with confidence, and grow your passion a little more every week — all made by real wine geeks. Interactive wine maps 32 detailed maps of the world's wine regions, zoomable in high resolution. Turn map layers on or off to see exactly what you want. Or turn them off to challenge your memory. Visual guides that make wine click More than a dozen infographics that turn complicated topics into something you can see: a beginner's wine guide, food and wine pairing, the colors of wine at full resolution, and aroma charts to use while tasting. Something new every week A new featured grape, region, and story each week to read, watch, and explore. Keep your curiosity growing, and find new amazing varieties and wine regions to explore. Made by real sommeliers Every map, guide, and article is created by the Wine Folly team. We're real, award-winning wine experts demystifying wine since 2011. Start free, then unlock the complete Wine Folly+ collection. A great study tool (CMS, WSET) in the palm of your hand or at home, on any device. Terms of Use: https://winefolly.com/terms-of-use/
Written user reviews are not shown here. Check current App Store reviews >
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
Expand the database and include user-generated content.
Assumption to check: Limited wine selection compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a tutorial or onboarding process.
Assumption to check: Navigation can be confusing for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce social features for user engagement.
Assumption to check: Lack of community features like forums or discussions.
Validate with people who use this workflow before building.
Hypothesis 4
Provide in-depth articles or videos on wine regions.
Assumption to check: Limited information on wine regions.
Validate with people who use this workflow before building.
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 Navigation
Axios
React Native Gesture Handler
React Native Reanimated
Expo
TypeScript
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.
