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
Metropolis: Remarkable Parking
USING METROPOLIS IS EASY
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
45,157 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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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.
JavaScript is required to complete mailbox verification.
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 Metropolis: Remarkable Parking: map the core Navigation workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 availability updates.
Assumption to check: Difficulty finding parking in busy areas
Validate with people who use this workflow before building.
Hypothesis 2
Introduce more payment methods like digital wallets.
Assumption to check: Limited payment options
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and enhance user onboarding.
Assumption to check: User interface can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Enhance GPS accuracy and integrate user feedback.
Assumption to check: Inaccurate location data
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
USING METROPOLIS IS EASY With Metropolis, paying for parking is as easy as driving in and driving out. Just open the app and sign up by adding your license plate and payment method. JUST DRIVE IN AND PARK Just drive in to any Metropolis location to start your visit. You'll receive a notification that you've arrived. TRANSPARENT PRICING With Metropolis, parking rates and price estimates are available before you park. Once your visit starts, you can extend your stay or change your payment method remotely. JUST DRIVE OUT TO PAY When you've finished parking, just drive out to pay automatically. We'll send you a receipt after every visit, and you can access your complete parking history at any time. FIND FREE OR DISCOUNTED PARKING Look for a Metropolis sign at participating retailers near your parking location. From your visit page, simply scan the QR code to apply the discount. You'll see your parking price adjust right away in the app. EASY TO NAVIGATE You can use Metropolis when traveling and renting a car. Just add the rental to your account, assign an end date, and we'll automatically remove it when you're done. FIND METROPOLIS IN YOUR CITY Nashville, Houston, Los Angeles, Detroit, Austin, Roanoke, Knoxville, Denver, St. Louis, Kansas City, Memphis, Salt Lake City, Miami, San Francisco, Washington DC, Charlotte, Dallas, Cleveland, New York, Chattanooga, Seattle, Sacramento, Louisville, and more. Not all features available in all markets. NEED HELP? Contact [email protected] or visit help.metropolis.io Interested in deploying Metropolis technology in your facility or real estate portfolio? Learn more at https://metropolis.io https://www.metropolis.io/privacy/#california-privacy-notice
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
react-navigation
axios
react-native-maps
expo-location
BUILD KIT DIFFICULTY
Expert
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.
