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
Carl's Jr. Mobile Ordering
Real ones have the Carl’s Jr
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
171,712 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 Carl's Jr. Mobile Ordering: 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 real-time order tracking with ETA.
Assumption to check: Long wait times for orders during peak hours
Validate with people who use this workflow before building.
Hypothesis 2
Add more customizable options for items.
Assumption to check: Limited customization options for menu items
Validate with people who use this workflow before building.
Hypothesis 3
Optimize app performance and loading times.
Assumption to check: Inconsistent app performance on older devices
Validate with people who use this workflow before building.
Hypothesis 4
Simplify navigation and improve user flow.
Assumption to check: Confusing navigation structure
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
Real ones have the Carl’s Jr. app and MyRewards. Earning points towards free food? Check. Exclusive, app-only deals for even more ways to save? You bet. Skip the line by ordering ahead? Obviously. Download it now or keep paying full price like a rookie. Your cravings deserve better. JUICY, EXCLUSIVE WAYS TO SAVE The REALLY good deals are in here. Browse through a list of deals on our legendary charbroiled burger flavors, sides, drinks and more, add a deal to your order, and get ready to stuff your face for way less. ORDER EXACTLY WHAT YOU WANT, SKIP THE LINE It’s not just about skipping the line (though that part’s pretty awesome). You can also fully customize your order and check out quickly with a saved credit card or gift card, you can schedule a pick-up time, and with location services enabled, we’ll be notified when you’re close so we can make sure your burgers are hot and fresh, the drinks are cold, and that your cravings aren’t left waiting. GET REWARDED WITH EVERY BITE When you become a MyRewards member, you can earn 10 Stars for every $1 spent. Then, cash 'em in for your favorites, like a 5pc French Toast Dips or Any Size Fountain Drink for 150 Stars. Spicy Chicken Sandwich or Any Size French Fries? 300 Stars. Want a 5pc Hand-Breaded Chicken Tenders or Beyond Famous Star? 500 Stars and it’s yours. But that’s not all - check out the rest for yourself and start earning!
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
Axios
React Navigation
Shadcn/ui
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.
