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
Trading Game - Stock Simulator
Learn to day trade and master the markets - all risk-free with the Trading Game Stock Simulator app.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
5,173 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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
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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 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 Trading Game - Stock Simulator: 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
Include tutorials and guides within the app.
Assumption to check: Limited educational resources for beginners
Validate with people who use this workflow before building.
Hypothesis 2
Integrate real-time data feeds for better user experience.
Assumption to check: Market data may not be real-time
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and enhance layout design.
Assumption to check: User interface may feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Offer more customizable premium features.
Assumption to check: In-app purchase limitations
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
Learn to day trade and master the markets - all risk-free with the Trading Game Stock Simulator app. The Leading Market Education for Active Day Trading & Investing Join over 3 million students and discover if you can trade and manage risk like a pro - no finance degree required. Here’s what makes it a game-changer: TRADING ACADEMY • Get access to 150+ lessons on trading and investing, perfect for beginners to advanced traders: • Pro Tips for Risk Management: Master stop-loss and take-profit strategies across different timeframes. • Interactive Courses: New lessons monthly, focusing on current market trends and strategies. • Save Time & Money: No more expensive webinars—learn with quick, easy-to understand content. DAY TRADING SIMULATOR • Practice in Real• Time: Trade stocks, forex, commodities, and more with live market data. • Forex Game Mastery: Practice leveraged forex trading to become proficient in margin trading. • Find Market Opportunities: Get top gainers, losers, and live market updates for smarter decisions. • Build Discipline: Switch between line, bar, and candlestick charts to visualize your ideas. • Use Indicators: Apply volume, RSI, moving averages, and more for deep technical analysis. • 24/7 Trading: Trade options, fiat, and digital currencies anytime. STOCK MARKET SIMULATOR • Buy & Sell Stocks in a Simulator: Learn how to trade stocks like a pro using our stock market simulator. • Diversify: Spot chart patterns in indices, commodities, gold, oil, and more to diversify your virtual portfolio. • Real• Time Investing Game: Stay up-to-date with real prices, market alerts, events, and portfolio tracking tools. • Compete & Sharpen Skills: Challenge yourself in fantasy investing, virtual trading competitions, and rise on the leaderboard. • Global Stock Access: Trade stocks from major exchanges: NYSE, LSE, NSE, and Tokyo. • Portfolio Builder: Use the stock screener to build a profitable portfolio from 15 top ETFs or over 200 stocks. PATTERN HUNTER QUIZ • Daily Challenges: Boost your pattern recognition skills with interactive quizzes. • Offline Learning: Analyze past data to sharpen your ability to predict market trends. • Gamified Learning: Improve instincts with engaging tips and interactive tools. COPY TO CHART (PATENT PENDING) • One• Click Expertise: Apply expert analysis directly to your charts instantly. • Seamless Charting: Copy key indicators, support/resistance lines, and trend patterns to make your charts professional. QUICK READS Learn trading insights in minutes with condensed visual summaries from top finance books. Absorb critical lessons quickly, even offline: • Price Action Secrets • The Intelligent Investor • The Psychology of Money • Principles by Ray Dale • Think and Grow Rich • Trading Volume Secrets • Forex Trading for Beginners TRADING BATTLES • Compete Globally: Go head• to• head with friends, AI, or traders worldwide. • Quick 1v1 Battles: Prove your trading skills and find the best setups in under 10 minutes. • Climb the Leaderboard: Gain experience, claim rewards, and earn bragging rights. Invest in your future and become a trading expert at your own pace. Once you're confident, choose from top brokers regulated in the EU, US, AU, and UK. ►Join Trading Game App today - the best trading simulator for beginners, students, kids, and all who want to learn the art of stock market investing. For feedback: [email protected] Terms and Conditions: https://tradinggame.com/terms-and-conditions-trading-game/ Privacy Policy: https://tradinggame.com/privacy-policy-trading-game/
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
Supabase
zustand
react-native-chart-kit
@react-navigation/native
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.
