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
MarketWatch - News & Data
MarketWatch: Stay informed with timely coverage, real-time market activity, personalized recommendations, and the stocks on your watchlist
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
238,098 ratings · Top 15%
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 included18 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 MarketWatch - News & Data: 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
MarketWatch: Stay informed with timely coverage, real-time market activity, personalized recommendations, and the stocks on your watchlist. Whether you are researching a stock, following your portfolio, or catching up on the latest headlines, MarketWatch helps you keep up with what matters. READ THE NEWS THAT MATTERS • Read Top Stories, Latest News, and coverage across MarketWatch • Discover recommended stories and what to read next • Use Read to Me to listen to articles • Save articles for later FOLLOW THE MARKETS • See market activity across U.S., European, and Asian markets • Follow stocks with detailed quote pages, in-article tickers, and market data • Track pre-market and after-hours activity • Create and manage multiple watchlists • Monitor holdings and explore gainers, decliners, and most active securities MAKE MARKETWATCH YOURS • Build a personalized MyMarketWatch feed with saved articles and For You recommendations • Search for quote pages and articles across MarketWatch with the Access Markets and Watchlist from the bottom navigation • Swipe between sections to find more of the coverage you follow EXPLORE MARKET OVERVIEW • See real-time market activity, Live Coverage, and trending news in one hub • Read Live Coverage natively in the app without leaving the experience A BETTER APP EXPERIENCE • Enjoy refreshed navigation and redesigned story cards • View cleaner quote pages in light or dark mode • Use customizable text sizing • Turn on system-based dark mode that follows your device settings • Manage your profile and settings with one-tap access Privacy Notice: https://www.dowjones.com/privacy-notice/ Terms of Use: https://www.dowjones.com/terms-of-use/ Cookie Notice: https://www.dowjones.com/cookies-notice/
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
Allow users to categorize stocks by sectors or preferences.
Assumption to check: Limited customization for watchlist items
Validate with people who use this workflow before building.
Hypothesis 2
Implement personalized news feeds based on user interests.
Assumption to check: Overwhelming amount of data without clear prioritization
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer explanations of subscription benefits and features.
Assumption to check: In-app purchases may be unclear
Validate with people who use this workflow before building.
Hypothesis 4
Optimize article loading with lazy loading and caching.
Assumption to check: Slow loading times for news articles
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 Navigation
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Axios
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BUILD KIT DIFFICULTY
Advanced
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.
