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
Recipe Keeper - Mr. Cook
Never lose a recipe again
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
25 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
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A product spec, screen plans, and build steps for your coding agent.
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What's included20 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 Recipe Keeper - Mr. Cook: 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
Implement better organizational features like tags and categories.
Assumption to check: Difficulties in managing large recipe collections
Validate with people who use this workflow before building.
Hypothesis 2
Enhance sharing functionality with social media integrations.
Assumption to check: Limited recipe sharing options
Validate with people who use this workflow before building.
Hypothesis 3
Clearly define and highlight premium features to entice users.
Assumption to check: No clear subscription benefits
Validate with people who use this workflow before building.
Hypothesis 4
Optimize search algorithms and indexing for faster results.
Assumption to check: Search functionality can be slow
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
Never lose a recipe again. Mr. Cook is your AI-powered kitchen companion that saves, organizes, and brings all your recipes together. SAVE RECIPES FROM ANYWHERE • Save social media recipes with one tap • Import recipes from 400+ cooking websites instantly • Scan handwritten family recipes in seconds • Store everything in your personal digital cookbook • Never lose a recipe again CREATE WITH AI • Generate recipes from ingredients you already have • Get personalized suggestions for your dietary needs • Perfect for allergies, restrictions, and preferences • Turn "what's in my fridge?" into dinner ORGANIZE YOUR COLLECTION • Beautiful, searchable digital cookbook • Powerful filters to find any recipe instantly • Smart categories and tags • Edit and customize every recipe • Access from any device with secure cloud backup PLAN MEALS EFFORTLESSLY • Weekly meal planner in 2 minutes • Auto-generated shopping lists • Share meal plans with family • Save time and reduce food waste COOK TOGETHER AS A FAMILY • Create shared family cookbooks • Share recipes instantly with loved ones • Preserve family cooking traditions • Always stay in sync WORKS EVERYWHERE YOU DO • iPhone, iPad, and web access • Automatic cloud sync • Your recipes, available anytime Download free today! Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Our terms of service: https://www.mrcook.app/en/legal/terms Our privacy policy: https://www.mrcook.app/en/legal/privacy
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
Axios
React Navigation
Zustand
BUILD KIT DIFFICULTY
Advanced
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.
