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
Clean Stock
Clean Stock is a lightweight stock tracker and market watchlist app for following stocks, ETFs, indexes, and mutual funds without being buried under overwhelming dashboards.
$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 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 Clean Stock: 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
Integrate advanced analytics and visualizations for better insights.
Assumption to check: Users often struggle with tracking multiple stocks and viewing detailed analytics.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize their dashboard and portfolio views.
Assumption to check: Limited customization options for portfolios.
Validate with people who use this workflow before building.
Hypothesis 3
Implement automatic transaction syncing with linked accounts.
Assumption to check: Inadequate transaction tracking features.
Validate with people who use this workflow before building.
Hypothesis 4
Offer a more flexible pricing model with a free tier.
Assumption to check: High subscription costs for premium features.
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
Clean Stock is a lightweight stock tracker and market watchlist app for following stocks, ETFs, indexes, and mutual funds without being buried under overwhelming dashboards. Create focused watchlists, scan simple red and green trends, set price alerts, compare price and total return against common benchmarks, build a portfolio plan, practice decisions with paper trading, and open each asset for the details that matter: charts, key stats, volume history, dividend yield history, EPS history, ETF holdings, mutual fund information, and related news. Paper trading uses virtual cash and never sends an order to a broker. Simulate buys and sells, follow open positions, review realized and unrealized profit or loss, add optional notes to decisions, and inspect simple review statistics for completed sells. The app is built around the "Clean & Minimalist" concept: calm screens, readable rows, and enough context to understand what moved without turning every check-in into research homework. Features: - Clean, minimalist stock and ETF watchlists for different investing themes - Starter default watchlist for a faster first launch - Intraday and historical price charts - Focused stock, ETF, index, and mutual fund detail views - Volume history with daily and weekly views, rolling average, volume ratio, and z-score context for supported stocks - Dividend yield history for supported stocks - EPS charts with upcoming earnings markers when available - ETF holdings and fund information - Fund yield history, turnover stats, and timing tendency details when available - Portfolio planning with target vs actual allocation, visual allocation markers, drift tracking, and base currency settings - Holdings smart list for quickly reviewing tickers already added to your portfolio - Paper trading with virtual cash, simulated buy and sell orders, open positions, and trade history - Optional trade notes and review statistics including realized profit or loss, win rate, and average wins and losses - Price alerts for rise and drop thresholds - Separate price and total return benchmark comparisons against SPY, QQQ, DIA, IWM, VTI, TLT, and GLD - Built-in smart lists including Holdings, Day Gainers, undervalued large caps, growth technology stocks, Top Mutual Funds, and High-Yield Bonds - ETF and mutual fund category details with style-box context when available - Search ticker symbols, add them to a list, or open details directly - Related news links for supported symbols Clean Stock is for informational purposes only and does not provide investment, financial, tax, or legal advice.
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
axios
victory-native
@react-navigation/native
Zustand
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.
