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
ZTL Italy - Limited Traffic Zone
Hai sempre sognato di vistare l'Italia? Stai pianificando un viaggio nella campagna toscana o un weekend per conoscere le meraviglie di Roma? Sei il benvenuto.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.3
3 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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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/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for ZTL Italy - Limited Traffic Zone: 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
Focus on user-friendly features and better zone information.
Assumption to check: Limited functionality and features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement user feedback for accurate zone updates.
Assumption to check: Inaccurate zone data reported by users
Validate with people who use this workflow before building.
Hypothesis 3
Design a more intuitive UI with clear navigation paths.
Assumption to check: Poor user interface and confusing navigation
Validate with people who use this workflow before building.
Hypothesis 4
Add real-time traffic data overlays for better user experience.
Assumption to check: Lack of real-time updates for traffic conditions
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
Hai sempre sognato di vistare l'Italia? Stai pianificando un viaggio nella campagna toscana o un weekend per conoscere le meraviglie di Roma? Sei il benvenuto. Prima di partire, però, devi sapere che in molte città italiane, a differenza di quelle europee, esistono delle zone urbane in cui è impossibile accedere con l'automobile. Le Zone a Traffico Limitato (ZTL) sono sorvegliate dai vigili urbani e protette da telecamere che controllano gli accessi. Alcune di esse sono in funzione 24 ore su 24, altre vengono aperte agli automobilisti solo per alcune ore al giorno. Se per caso dovessi accedere in una di queste zone, saresti costretto a pagare una multa che va dagli 80,00 euro ai 335,00 euro. Lo sappiamo, ti sembrano cifre assurde ma in Italia le regole sono queste. Non preoccuparti più del dovuto, però! Scarica ZTL Italia e parti sicuro e informato. Quest'app è l'unica che contiene una mappa aggiornata con tutte le ZTL d'Italia. Facilissima ed attendibile, funziona come un navigatore. Grazie ad un sistema di allarme personalizzato, ogni volta che ti avvicinerai ad una ZTL una voce ti avvertirà in tempo e ti dirà se la zona è aperta o chiusa. Puoi avere ZTL Italia anche nel centro notifica del tuo smartphone o Tablet perché include il widget. Visita l'Italia senza brutte sorprese, scarica ZTL Italia e buon viaggio! *** Ultimo aggiornamento varchi: 29 Marzo 2017 ***
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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
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BUILD KIT DIFFICULTY
Advanced
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.
