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
Lunchbox Recipes
Are you stuck making the same sandwiches for lunchboxes on repeat? Want to mix things up with easy, nutritious lunches that your child will actually eat and that don’t take hours to prep?
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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 Lunchbox Recipes: 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
Allow users to modify ingredients and instructions.
Assumption to check: Limited recipe customization options
Validate with people who use this workflow before building.
Hypothesis 2
Include a meal planner for organizing lunchboxes for the week.
Assumption to check: No meal planning feature
Validate with people who use this workflow before building.
Hypothesis 3
Add user-generated recipe sharing and commenting.
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 4
Offer a selection of free recipes to attract more users.
Assumption to check: Premium content without free options
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
Are you stuck making the same sandwiches for lunchboxes on repeat? Want to mix things up with easy, nutritious lunches that your child will actually eat and that don’t take hours to prep? Then this app is for you. This app is packed with 200+ family-friendly lunchbox recipes (and growing) to help you create exciting, balanced lunches without the stress. Whether you’re packing a school lunchbox, heading out for a picnic, or planning meals for a busy day, you’ll always have fresh ideas right at your fingertips. As my daughter got older and started preparing for school and as our family days out became more frequent I realised how important it was to have portable, fuss-free lunches that work for the whole family. Every recipe in this app is family-friendly and suitable from six months, so you can prepare once and feed everyone. Whether you’re looking for quick weekday lunches, picnic inspiration or lunchbox ideas that go beyond sandwiches, this app has you covered. Key features: • 200+ delicious, family-friendly lunch recipes • Clean, bright, easy-to-navigate design • Search by recipe name or ingredient • Save your favourites for quick access • Add ingredients straight to your shopping list • Filter recipes by dietary requirements (vegetarian, vegan, dairy-free, egg-free) • Free help and support via the app or my online support group • Regular free updates and new recipes added I hope you love the recipes as much as my family does. If you ever need help or have questions, please get in touch - I’m always happy to help. Natalie x
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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
Zustand
React Navigation
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.
