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
Cozy Golf
cozy golf is a relaxing golf game with no ads, no in-app purchases, and no microtransactions — just pure, peaceful golfing fun
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
34 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
Make this idea yours
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.
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 Cozy Golf: map the core Games 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
Allow users to design and customize holes with more tools and features.
Assumption to check: Limited course customization options
Validate with people who use this workflow before building.
Hypothesis 2
Implement a matchmaking system to enhance multiplayer interactions.
Assumption to check: Inconsistent multiplayer experience
Validate with people who use this workflow before building.
Hypothesis 3
Introduce friend lists and chat features for better engagement.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Enable offline mode where users can play previous courses without internet.
Assumption to check: No offline play mode
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
cozy golf is a relaxing golf game with no ads, no in-app purchases, and no microtransactions — just pure, peaceful golfing fun. each course features three holes that can be completed in any order. aim for par (or better!) and travel through over 30 charming environments, collecting cute postcards from your adventures along the way. features relaxing gameplay: enjoy a simple, cozy golf experience free from ads, pop-ups, or pressure. pay once and play forever — no interruptions, no hidden costs, just relaxing gameplay. hundreds of courses: complete 280 handcrafted courses across 35 charming environments, each with its own mood, colors, and scenery. no golf experience necessary: you don't need to know how to golf in real life to enjoy cozy golf. a comprehensive tutorial will walk you through the basics. skill-based gameplay: use your driver, iron, wedge, and putter to master every shot. cozy golf’s intuitive aiming system rewards precision and timing — it’s about skill, not luck. cute and aesthetic: immerse yourself in a hand-drawn art style full of warmth and charm. every environment is designed to be cozy, colorful, and uniquely relaxing. customization: personalize your golf ball and flag colors, unlocking new options by completing achievements. daily challenge: tackle a new daily level and compete with friends on the online leaderboard. completing the daily challenge earns you an encouraging postcard to brighten your day. whether you’re chasing a perfect score or just looking to unwind, cozy golf offers a gentle escape into a calm world of color, precision, and charm. pay once. play forever. relax endlessly.
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
Supabase
react-navigation
expo-image-picker
zustand
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.
