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
Passport Parking
No more digging for coins
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
97,282 ratings · Top 15%
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 included16 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 Passport Parking: 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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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 advanced filtering and sorting to improve spot discovery.
Assumption to check: Users often report difficulties in finding available parking spots.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate a more reliable payment gateway and optimize transaction speed.
Assumption to check: Payment processing can be slow or buggy.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance customer support features, including in-app chat functionality.
Assumption to check: Limited user support for issues.
Validate with people who use this workflow before building.
Hypothesis 4
Utilize real-time data to ensure users see current availability.
Assumption to check: Inconsistent parking availability updates.
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
No more digging for coins. This is how parking should be. Pay, extend, and manage your parking session with just a few taps. It’s easy! PAY ON THE GO Pay quickly and securely with your smartphone. - Time's precious, stop wasting it feeding a meter. - Forget refilling the meter in the rain or braving the cold. NO PRICE SURPRISES See when parking rates will change in the future – even when there’s free parking! - Receive email receipts at the end of your parking session. - Expenses made easy, manage your parking history through the mobile app. STRESS-FREE PARKING Get alerts when your parking session is about to end. - Stop worrying about how much time is left on the meter, we have you covered. NO NEED TO RUSH Add time to your parking session directly from your phone.* - Your plans change, your parking spot shouldn't. Simply extend your parking session via our app. -------- GET STARTED TODAY 1. Download the Passport Parking app. 2. Park where you see Passport Parking app signs. 3. Pay for your parking session from your phone. 4. Relax, welcome to parking as it should be. -------- COMING SOON The Passport Parking app is not done yet! We're constantly updating the app based on your feedback. -------- APP PERMISSIONS - Location Services (optional): Used to quickly provide nearby parking zones. * where applicable
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.
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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.
