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
7th Street Burger
7th Street Burger | Order, Earn, Smash.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
1,170 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/
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 7th Street Burger: 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 customize items more extensively, like choosing toppings.
Assumption to check: Limited customization options for orders
Validate with people who use this workflow before building.
Hypothesis 2
Implement real-time tracking and estimated delivery times for orders.
Assumption to check: Inconsistent delivery times
Validate with people who use this workflow before building.
Hypothesis 3
Improve the navigation structure to minimize user effort when switching between sections.
Assumption to check: Difficult navigation between screens
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a rewards program to incentivize repeat orders.
Assumption to check: Lack of loyalty rewards system
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
7th Street Burger | Order, Earn, Smash. Welcome to the 7th Street Burger App — Order pickup or delivery, earn points with every purchase, and unlock exclusive rewards and limited-time offers. ORDER PICKUP OR DELIVERY Find your nearest location, customize your order, and check out securely in the app. Pick up when it’s ready or get delivery straight to your door. EARN REWARDS Earn 1 point for every $1 spent. Redeem points for exclusive rewards, free food, and special offers. The more you order, the more you earn. SAVE BY ORDERING DIRECT Skip third-party fees and get the best value when ordering straight from the 7th Street Burger app. EASY REORDERING Save your favorites and place your go-to order in just one tap. STAY CONNECTED Be the first to know about limited-time drops, new menu items, and app-only offers — all in one place. Download the app for a faster, simpler way to get 7th Street Burger.
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
Zustand
Supabase
React Navigation
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.
