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
Royal Cooking
Welcome to Royal Cooking — an exciting game where you’ll create the finest meals from world cuisines!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
175,304 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.
Build your own version
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 Royal Cooking: map the core Games workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
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Continue in Rork >
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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
Introduce seasonal or themed recipes to keep content fresh.
Assumption to check: Limited variety of recipes may lead to boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Implement clearer descriptions and visual cues for purchases.
Assumption to check: In-app purchases can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize assets and loading processes to enhance performance.
Assumption to check: Long loading times during gameplay.
Validate with people who use this workflow before building.
Hypothesis 4
Add mini-games or challenges to diversify gameplay.
Assumption to check: Repetitive gameplay mechanics can reduce engagement.
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
Welcome to Royal Cooking — an exciting game where you’ll create the finest meals from world cuisines! Embark on a culinary journey as you explore restaurants featuring diverse flavors — from Italian pasta and French pastries to Asian noodles and Mexican tacos. Upgrade your kitchen, add flair to your dishes, and use top-quality ingredients to delight your guests with delicious food. COOK WITH PURPOSE Prepare mouthwatering meals, fulfill customer orders, and fine-tune your kitchen setup. Save your coins, spend them wisely, and plan upgrades to tackle challenges with ease. UPGRADE YOUR KITCHEN Invest in better equipment, refine your presentation, and work with premium ingredients to impress your guests and boost your efficiency. DELIGHT YOUR GUESTS Serve visitors who love bold flavors and fast service. Keep them happy and unlock exciting new opportunities along the way! ENJOY STUNNING VISUALS Immerse yourself in a vibrant world of charming restaurants, exquisite cuisine, and smooth animations. Every detail makes your culinary adventure truly unforgettable.
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
React Navigation
Redux
Firebase
Axios
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.
