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
TC Traders Investments
TC Traders is the largest investment social network in Latin America, now fully integrated with a complete brokerage.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
104 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/
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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 TC Traders Investments: 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
Implement enhanced security features and user guidance for bank linking.
Assumption to check: Difficulty in linking bank accounts securely
Validate with people who use this workflow before building.
Hypothesis 2
Provide detailed analytics and personalized investment recommendations.
Assumption to check: Limited investment insights and analytics
Validate with people who use this workflow before building.
Hypothesis 3
Introduce in-app chat support and extensive FAQs.
Assumption to check: Inadequate customer support options
Validate with people who use this workflow before building.
Hypothesis 4
Create a simplified onboarding process and user-friendly tutorials.
Assumption to check: Complex user interface for beginners
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
TC Traders is the largest investment social network in Latin America, now fully integrated with a complete brokerage. Track the portfolios and performance of thousands of investors, follow top traders, and replicate their trades to maximize your market gains. Get a 360° view of your investments – stocks, options, futures, REITs, ETFs, mutual funds, fixed income, and more – all in one innovative and intuitive investment cockpit. Access real-time quotes from the Brazilian Stock Exchange (B3) and international markets, breaking news that moves the market, and join live trading rooms for mini-index, dollar futures, stocks, and options with professional analysts throughout the entire trading day. Explore advanced charts, exclusive tools, and strategies to improve your precision and profitability in the stock market. Join community discussions, build your network, exchange ideas in groups or private messages, and learn about investing in a vibrant ecosystem active 24/7. Key Features: -Integrated brokerage: trade variable-income assets directly in the app with a fast and intuitive order ticket. -Full range of investments: stocks, futures, options, REITs, ETFs, fixed income, mutual funds, forex, insurance, and more. -Real-time tracking: profitability charts, detailed statistics, and wealth evolution. -Live trading rooms: from pre-market to market close at B3, trade alongside top-performing traders. -Interactive channels: discussions on stocks, futures, day trading, REITs, ETFs, and global markets. -AI-powered asset profiles: intelligent insights for any local or international asset, including companies, crypto, and indexes. -News: stay informed with all market-moving news, with free access to Brazil’s leading financial information service. -Exclusive courses: over 50 training programs for beginners and advanced traders. Download TC Traders now and discover how to invest smarter, learn faster, and earn more in the stock market.
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/supabase-js
react-native-chart-kit
react-navigation
zustand
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.
