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.
Parking Zones Vienna automatically determines if you need a parking ticket, based on your current location
$3.99 · In-app purchases
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 Parking Zones Vienna: 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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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: Inconsistent map loading times
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited payment options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user support for issues
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline functionality
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.
Parking Zones Vienna automatically determines if you need a parking ticket, based on your current location. The distinct colours of parking zones, short-term parking spots and resident-only parking spots give a clear indication whether a parking ticket is required. Parking tickets can be purchased directly within the app. + Most downloaded Navigation app in Austria, trusted by the locals + Featured on the App Store in "Today" & "New and Noteworthy" + Winner of the Content Award awarded by the City of Vienna — COMPREHENSIVE MAP VIEW — • All Parking Zones, always up-to-date parking information • All Short-Term Parking Spots, Shopping Streets and special regulations • All Resident-Only Parking Spots • All Parking Permit Districts and Overlapping Zones — FREE PARKING SPOTS? — The top of the screen shows if your parking spot requires a parking ticket. The timeline shows active and inactive hours for the current parking zone. Short-term parking spots and resident-only parking spots can be selected to show additional information like active hours, the maximum parking duration or the number of resident parking spaces. — PARKING TICKETS & REMINDERS — • Purchase parking tickets directly within the app*, no internet connection required • Save licence plates for multiple cars • You’ll receive a reminder notification as soon as your parking ticket expires so you'll never forget to renew your parking ticket — FIND A PLACE OR ADDRESS — Easily search for an address or long-press on the map to show parking information at the selected location. — MY PARKING PERMIT DISTRICT — Parking permit holders for one of Vienna's municipal districts can unlock many helpful additions to the app:** • The district area covered by your parking permit is marked as inactive and highlighted in blue color on the map • Nearby overlapping zones to neighbouring districts are marked as inactive and highlighted in blue color on the map • Resident-only parking spots in your parking permit district are marked as inactive and highlighted in blue color on the map • Special exceptions for short-term parking spots in shopping streets in your parking permit district are marked as inactive and highlighted in blue color on the map — MORE ADVANTAGES — • No internet connection is required to view parking information • No location updates in the background (save your battery!) • Official, accurate government data by Stadt Wien (Vienna City Administration) • Data for parking zones, short-term parking and resident-only parking is constantly updated — If you enjoy Parking Zones Vienna, please leave a review on the App Store. If you have any questions or feedback, please feel free to contact me via [email protected]. — *Purchases for parking tickets are operated by Handy Parken. For more information please visit http://handyparken.at. No additional costs result from using this app. Carrier-specific charges may apply. **Parking Permit District subscription for € 4,99 per year. You can manage and cancel your subscription in your iTunes Account Settings at any time. Subscriptions will renew within 24 hours before the subscription period ends, and you will be charged through your iTunes account. Terms and Privacy Policy: https://parkenwien.at/en/privacy Please note that the operator of the app “Parking Zones Vienna” cannot be held liable for the accuracy of the information provided. Although official up-to-date data provided by the City of Vienna is applied, traffic signs on scene are valid in the case of doubt. Furthermore, errors are possible due to inaccuracies in GPS position fixes provided by the mobile device. Please note that the app merely provides assistance for detecting short-term parking zones. Users are recommended to check official traffic signs for their parking spot. No legal recourse for parking fines or other charges is possible.
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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.