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.
Track every U.S
$0.99
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for U.S. Travel Tracker: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Limited user engagement features like in-app messaging.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social sharing options.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No analytics on travel patterns.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Absence of a review system for trips.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Track every U.S. state and city you've visited — and see your progress grow. U.S. City and State Tracker is a clean, beautifully designed app for anyone who loves to travel America. Whether you're on a cross-country road trip, checking off bucket list destinations, or simply curious how much of the country you've explored, this app makes it easy and satisfying to track your journey. FEATURES - Interactive U.S. Map — tap any state to mark it visited and watch it fill with color - Top 50 Cities — track the 50 largest U.S. cities by population, shown as tappable pins on the map - List View — browse states and cities in a searchable, filterable list organized by state - Progress Dashboard — see how many states and cities you've visited with visual progress indicators - iCloud Sync — your data syncs automatically across all your Apple devices - Dark Mode — designed with Dark Mode as the default for a sleek, modern look - Fully Accessible — built with VoiceOver and Dynamic Type support throughout Simple to use: tap a state or city to mark it visited. Tap again to unmark it. Your progress is saved automatically. Perfect for road trippers, frequent flyers, bucket list enthusiasts, or anyone who wants to remember where they've been.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.