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
Eater
The Eater app is the most trusted way to find great restaurants
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
15 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 included17 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 Eater: 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 more personalized recommendations based on user preferences.
Assumption to check: Limited restaurant discovery options
Validate with people who use this workflow before building.
Hypothesis 2
Optimize image loading and caching mechanisms.
Assumption to check: Slow loading times for images
Validate with people who use this workflow before building.
Hypothesis 3
Introduce a verification system for reviewers to improve credibility.
Assumption to check: Inconsistent review quality
Validate with people who use this workflow before building.
Hypothesis 4
Add features for users to follow friends and share experiences.
Assumption to check: Lack of social features
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
The Eater app is the most trusted way to find great restaurants. Our editors have spent years eating at the best restaurants and bars so you always know where to go next. Get instant access to all of Eater’s restaurant picks in every major city, whether you're exploring a new neighborhood, planning a trip, or need a quick rec on the go. With the Eater app, you’ll never have a bad meal. What you’ll love about the Eater app: - Curated by editors: Trusted recommendations and reviews from people who know restaurants - Insider to insider: Follow and connect with editors, chefs, and friends, and be part of the Eater community - Ask anything: Smarter search that finds the places you actually want - Recommended for you: Eater’s take on restaurants near you and wherever you travel - Create and share: Browse Eater lists, make your own, and share your favorite spots with friends - Browse to book: Reserve tables directly in the Eater app so you’re one step closer to a great meal With the Eater app, the next great place to eat or drink is in the palm of your hand, no matter where the day (or night) takes you. Download the Eater app to find your next great meal.
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
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.
