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
ParkZen: Find, Park, Go!
Discover ParkZen, your ultimate smart parking companion
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 3.3
98 ratings · Below Average
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 ParkZen: Find, Park, Go!: map the core Navigation 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
Provide real-time updates on parking availability.
Assumption to check: Limited parking availability info
Validate with people who use this workflow before building.
Hypothesis 2
Enhance location accuracy using user feedback.
Assumption to check: Inaccurate location data
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate gamification elements for leaving reviews.
Assumption to check: Poor user engagement with reviews
Validate with people who use this workflow before building.
Hypothesis 4
Integrate turn-by-turn navigation to selected parking spots.
Assumption to check: Lack of navigation to parking spots
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
Discover ParkZen, your ultimate smart parking companion. Say goodbye to the hassle of finding parking in crowded places. ParkZen uses smart crowdsourcing and cutting-edge AI to guide you to available parking spots in real time, transforming your parking experience in select locations. Key Features: Smart Parking Guidance: Navigate directly to open parking spots with ease. Our real-time parking availability feature ensures you spend less time searching and more time doing what you love. Parked Car Locator & Citation Warnings: Never forget where you parked again. ParkZen not only helps you locate your parked car but also sends timely reminders to avoid citations. Rewards & Points: Earn points and rewards for parking at select locations. The more you park, the more you save! Seamless Parking Payments: With our innovative AppClip, you can quickly pay for parking without downloading the full app—perfect for those on the go. For those seeking the full suite of smart parking tools, the complete ParkZen app experience allows you to enjoy additional features and benefits. Comprehensive Parking Solutions: Whether it's metered, long-term, or valet parking, ParkZen has you covered. Our technology is designed to cater to all types of parking needs, particularly excelling in gateless parking environments. By choosing ParkZen, you're not just finding a parking spot; you're upgrading to a smarter, stress-free parking experience and joining a community of parkers. Our blend of advanced technology and user-friendly design makes parking seamless, rewarding, and efficient. Download ParkZen today and transform the way you park!
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
Supabase
react-native-maps
@react-navigation/native
expo-location
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.
