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
World Stock Market Widget
World Stock Market Widget shows you, at a glance, which of the world's major stock exchanges are open, closed, in pre-market, or in after-hours trading right now.
$0.99
PRICE
$0.99
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.
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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 included16 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.
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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.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
World Stock Market Widget shows you, at a glance, which of the world's major stock exchanges are open, closed, in pre-market, or in after-hours trading right now. Fifteen exchanges across every time zone, from New York and London to Tokyo, Hong Kong, and Sydney, each with a live countdown to its next open or close. No prices, no noise, just the one thing you actually need to know: is this market trading? FEATURES - 15 world exchanges: New York, Toronto, Sao Paulo, London, Frankfurt, Paris, Munich, Mumbai, Hong Kong, Shanghai, Taipei, Singapore, Seoul, Tokyo and Sydney. - Status at a glance: Open (green), Pre-Market or After-Hours (amber), Closed (red). - Live countdowns to the next open and close. - Pre-market and after-hours sessions for the exchanges that have them. - Holiday and weekend aware, so a market on holiday shows as closed, not open. - Home-screen and desktop widget in three sizes. - Show or hide any market to keep just the ones you follow. - Optional alerts when your markets open and close, plus extended-hours alerts. BUILT FOR EVERY DEVICE One app for iPhone, iPad and Mac, with a widget on each. PRIVATE BY DESIGN No account, no sign-up, no tracking, no ads. Everything runs on your device, and it works offline. Trading hours cover regular full-day sessions and listed holidays. Half-days are not modelled.
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
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.
