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
Stocktwits
Download the Stocktwits App and tap into the heart of the markets with millions of other investors and traders
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
165,240 ratings · Top 5%
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/
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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.
// RORK SYSTEM PROMPT
Rork plan preview for Stocktwits: 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 charting options and analysis tools.
Assumption to check: Limited stock analysis tools
Validate with people who use this workflow before building.
Hypothesis 2
Implement customizable notification settings for users.
Assumption to check: Inconsistent user notifications
Validate with people who use this workflow before building.
Hypothesis 3
Streamline the design for better readability and navigation.
Assumption to check: Cluttered user interface
Validate with people who use this workflow before building.
Hypothesis 4
Optimize data fetching and caching strategies.
Assumption to check: Slow loading times for data
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
Download the Stocktwits App and tap into the heart of the markets with millions of other investors and traders. Get instant access to professional analysis, market sentiment, trending stocks, trading ideas, new market trends and more. FEATURES: TAP INTO THE GLOBAL VOICE OF FINANCE AND INVESTING Discuss the markets in real-time with millions of other traders and investors. Share commentary and ideas with charts, photos and GIFs. Share, like, reply to posts, and follow other investors. FOLLOW YOUR FAVORITE ASSETS AND TRENDING TICKERS Add Stocks, ETFs, Crypto, and more to your watchlist. Find out what the top symbols being discussed are each day and stay in the know. MARKET SENTIMENT Track real-time bullish/bearish sentiment on nearly every equity, crypto, index, currency or commodity. Live Earnings Call and Chat Listen to live Earnings Calls and chat right from the App! AND MUCH MORE Earnings Calendar: know exactly when companies are reporting. News: featured and trending stories from top sources. SUBSCRIPTIONS AND PRODUCTS: Stocktwits is a free app that offers optional in-app purchases. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Customers outside the U.S. will see local prices. Please see our Privacy Policy and our Terms and Conditions. Apple EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DISCLOSURES: No content in the App shall be considered a recommendation or solicitation for the purchase or sale of securities or other investment products. All information and data in the App are for reference only and no historical data shall be considered as the basis for judging future trends. All investments involve risk, including the potential loss of principal. Online trading has risks including system availability, market volatility, market access and other external factors. All information and data from the App, including, but not limited to, third-party information and social media community driven content & communications, are for informational purposes only and should not be considered a recommendation or solicitation for the purchase or sale of securities or other investment products. The information provided is not warranted as to completeness or accuracy and is subject to change without notice. For additional information on disclosures and community guidelines visit www.stocktwits.com.
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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
Firebase
react-native-paper
react-native-vector-icons
BUILD KIT DIFFICULTY
Expert
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.
