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
SmartBudget Pro
SmartBudget Pro helps you take control of your finances anywhere in the world.
$0.29 · In-app purchases
PRICE
$0.29
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 included15 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 SmartBudget Pro: 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 automatic transaction categorization and bank linking.
Assumption to check: Users often struggle with manual entry of transactions
Validate with people who use this workflow before building.
Hypothesis 2
Add visual progress indicators and alerts for overspending.
Assumption to check: Budget tracking can be tedious
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate analytics and reports for better financial understanding.
Assumption to check: Limited insights into spending habits
Validate with people who use this workflow before building.
Hypothesis 4
Enhance account linking and overview features.
Assumption to check: Difficulty managing multiple accounts
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
SmartBudget Pro helps you take control of your finances anywhere in the world. Track your income and expenses, choose your preferred currency, and manage your budget in your own language. Key Features Income & Expense Tracking – Add, edit, and organize your financial records with ease. Multi-Language & Multi-Currency Support – Use the app in your language and view amounts in your currency. Charts & Insights – Visualize where your money goes with clear and simple graphs. Date Range Filtering – See your financial activity for any custom period. PDF Export – Generate and share professional reports in seconds. Privacy First – Works fully offline. Your data stays on your device. Whether you’re budgeting at home, traveling abroad, or managing multiple currencies, SmartBudget Pro gives you the clarity and control you need. Supported Languages: English (en), Türkçe (tr), Español (es), Deutsch (de), Français (fr), Italiano (it), Português (pt), العربية (ar), Русский (ru), 中文（简体）(zh), 中文（繁體）(zh-Hant), 日本語 (ja), 한국어 (ko), हिन्दी (hi), Bahasa Indonesia (id), Nederlands (nl), Polski (pl), Tiếng Việt (vi), ไทย (th), Українська (uk)
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
Zustand
React Navigation
react-native-reanimated
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.
