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
Finance Folio
¿A dónde se va tu dinero cada mes? Finance Folio te ayuda a saberlo y a tomar mejores decisiones financieras.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included14 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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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 Finance Folio: map the core Finance 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 smart filters and a search function to ease account management.
Assumption to check: Users find it challenging to manage multiple accounts and transactions effectively.
Validate with people who use this workflow before building.
Hypothesis 2
Provide visual reports and trends for better financial insights.
Assumption to check: Lack of detailed financial reports and analytics.
Validate with people who use this workflow before building.
Hypothesis 3
Streamline settings with a more user-friendly design and categorization.
Assumption to check: Users dislike overwhelming settings menus.
Validate with people who use this workflow before building.
Hypothesis 4
Add features for automatic categorization and budget tracking alerts.
Assumption to check: Difficulty in tracking recurring transactions and budgets.
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
¿A dónde se va tu dinero cada mes? Finance Folio te ayuda a saberlo y a tomar mejores decisiones financieras. Basada en el método 50/30/20, la estrategia de presupuesto personal más efectiva y comprobada: • 50% para gastos fijos — renta, servicios, suscripciones • 30% para gastos personales — comida, entretenimiento, ropa • 20% para inversión y ahorro SEGUIMIENTO INTELIGENTE DE GASTOS Registra cada ingreso y gasto con su frecuencia real (diario, semanal, quincenal, mensual). Finance Folio convierte todo a equivalente mensual para darte una visión clara y honesta de tu situación. INSIGHTS PERSONALIZADOS La app analiza tus patrones de gasto y te avisa cuando te excedes en alguna categoría, cuánto te falta para alcanzar tu meta de inversión, o si estás gastando más de lo que ganas. VISUALIZA TU PROGRESO Gráficas claras que comparan tu distribución actual contra la ideal. De un vistazo sabes si vas bien o dónde necesitas ajustar. PRIVACIDAD TOTAL Tus datos financieros son solo tuyos. Todo se guarda únicamente en tu dispositivo — sin cuentas que crear, sin servidores, sin sincronización en la nube. Control total, cero tracking. Disponible en español e inglés. Desarrollada por Creedex.
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
Zustand
react-navigation
@react-native-gesture-handler
FastAPI
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.
