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
Wealth Lens
Wealth Lens is a simple, private tracker for your personal net worth.
$0.99 · In-app purchases
PRICE
$0.99
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Wealth Lens: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
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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
Use Plaid for secure bank account linking.
Assumption to check: Difficulty in linking bank accounts securely
Validate with people who use this workflow before building.
Hypothesis 2
Implement AI-driven automatic categorization.
Assumption to check: Complicated transaction categorization
Validate with people who use this workflow before building.
Hypothesis 3
Provide customizable budget categories and alerts.
Assumption to check: Lack of personalized budgeting tools
Validate with people who use this workflow before building.
Hypothesis 4
Offer detailed reports and analytics on spending patterns.
Assumption to check: Poor historical data insights
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
Wealth Lens is a simple, private tracker for your personal net worth. Record what you own and what you owe, and watch your net worth change over time. Hold assets in multiple currencies — Wealth Lens converts everything to your base currency using daily exchange rates from the European Central Bank. YOUR DATA STAYS YOURS • No account, no sign-up, no login. • Your holdings, balances, and notes stay on your device by default. • Optional iCloud Sync (off by default) is end-to-end encrypted to your own private iCloud — your data goes to your Apple account, never to us. • The only thing fetched from the internet is public exchange-rate data — never your data. TRACK WHAT MATTERS • Assets and liabilities, grouped clearly. • Daily net-worth snapshots so you can see your trend. • Multi-currency support with automatic conversion. • A clean, focused design that gets out of your way. Wealth Lens is for people who want a quiet, honest picture of their finances — without ads or trackers.
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
Supabase
Axios
React Navigation
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.
