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
Parksy - find your parked car
▶ “Never ask ‘Where did I park?’ again.” ◀
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 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
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Parksy - find your parked car: 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
Allow users to save an unlimited number of cars.
Assumption to check: Limited ability to save multiple cars
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline maps and saving capabilities.
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Add turn-by-turn navigation and real-time traffic updates.
Assumption to check: Lack of detailed navigation features
Validate with people who use this workflow before building.
Hypothesis 4
Provide options for customizable reminders for parking expiration.
Assumption to check: No customizable notifications
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
▶ “Never ask ‘Where did I park?’ again.” ◀ Parksy is your sleek, intelligent car locator — designed to help you remember exactly where you parked, with just one tap. Whether you’re navigating a crowded city, a sprawling garage, or a busy event, Parksy makes finding your car quick and intuitive. No logins. No clutter. Just one beautiful app that does one thing — perfectly. Parksy is the fastest, easiest way to remember where you parked. Just tap once to save your location, then navigate back whenever you’re ready. It’s that simple. Why Parksy? ▶ One tap Save – Instantly save your parking location with a single tap ▶ Siri + Shortcuts – Control Parksy hands-free or from the lock screen ▶ Widgets – Park and unpark right from your Home Screen ▶ Live activity - See how much parking time you have left in real time with a live activity on your lock screen ▶ Control Center – Control centre and lock screen shortcuts are also available ▶ Shortcuts app integration - For more advanced automation Parksy also works with the Shortcuts app ▶ Custom themes – Customize your experience with different colors and icons ▶ Photos and notes - Save important details about where you parked ▶ Lightweight & Fast – No clutter. Just the essentials done right This app requires an internet connection and your location. Your location may be less accurate indoor or deep underground. If you need any help or have any suggestions, please reach out at [email protected]
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 Navigation
@react-native-community/image-picker
expo-location
BUILD KIT DIFFICULTY
Starter
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.
