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
StockStress: Portfolio Stress
Stress-test any US stock or weighted portfolio before the next drawdown.
$1.99
PRICE
$1.99
No 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
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Combine features and design from your favorite apps.
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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 included
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 StockStress: Portfolio Stress: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Stress-test any US stock or weighted portfolio before the next drawdown. StockStress simulates macro shocks like inflation, rates, labor, FX, and multiple contraction and shows stressed price paths, margin squeeze, and solvency ratios in one dark, focused workspace. WHAT YOU CAN DO • Stress any ticker — Search 11,000+ US symbols. Profile diagnostics, P/E, resilience score, and live price context. • Stressed price trajectory — Compare actual vs stressed paths with earnings markers and P10–P90 projection bands. • Macro tuning — Six interactive dials plus presets: stagflation, tech margin crash, supply shock, rate shock, and more. • Financial squeeze autopsy — Waterfall from revenue → COGS → OpEx → interest → free cash flow under your scenario. • Solvency & ratios — Altman Z-Score, interest coverage, leverage, and liquidity gauges with baseline vs stressed values. • Portfolio stress test — Weighted holdings, compound drawdown, VaR proxy, crash liability ranking, and resilience by name. • Historical crisis replay — Replay GFC, COVID crash, and 2022 rate shock against your portfolio weights vs SPY. • Market feed — Ticker-aware headlines while you research. BUILT FOR Investors and finance enthusiasts who want scenario thinking—not just charts—without a Bloomberg terminal. IMPORTANT StockStress uses public market and filing data for education and research. Outputs are simulations, not predictions. This is not investment, tax, or legal advice. Past crisis paths do not guarantee future results. Questions or feedback? Contact us through the App Store listing.
Written user reviews are not shown here. Check current App Store reviews >
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
Single-screen dashboard with key metrics
Assumption to check: Complex, confusing interface
Validate with people who use this workflow before building.
Hypothesis 2
Use Plaid for instant linking
Assumption to check: Slow bank connections
Validate with people who use this workflow before building.
Hypothesis 3
Biometric auth + 2FA prominently displayed
Assumption to check: Security concerns
Validate with people who use this workflow before building.
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
Plaid API
Supabase
RevenueCat
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
