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
Forex Calculators Offline
Master your trading risk with the most comprehensive suite of Forex calculators designed for professional and aspiring traders.
$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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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 included
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 Forex Calculators Offline: 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
Master your trading risk with the most comprehensive suite of Forex calculators designed for professional and aspiring traders. Forex Calculators Offline provides essential tools to help you manage your capital, calculate precise entry requirements, and maintain consistency in the volatile currency markets. Whether you are a day trader, swing trader, or focused on long-term investments, these tools are built to streamline your workflow and protect your account. Our application works entirely offline, ensuring you have access to critical calculations even without an internet connection. No more manual math or complex spreadsheets—just fast, accurate results to help you make informed trading decisions. Included Professional Calculators: Position Size Calculator Determine exactly how many lots or units to trade based on your risk tolerance, account balance, and stop loss distance. Includes ATR-based stop loss integration for volatility-adjusted entries. Pip Value Calculator Calculate the precise value of a single pip in your account currency across various currency pairs, helping you understand your potential exposure. Risk of Ruin Calculator Analyze the probability of losing your trading capital based on your win rate and risk per trade. Use the integrated Kelly Criterion to find your optimal risk percentage. Compounding & Growth Blueprint Visualize the long-term potential of your account with our compounding calculator. Generate a detailed blueprint of your projected account growth over time. Multi-Trade Break-Even Calculator Manage complex positions. Calculate the exact price point where multiple trades in the same or opposite directions reach a net zero profit/loss. Margin Calculator Verify the required margin needed to open and maintain positions based on your account leverage. Pivot Point & Fibonacci Calculators Identify key support and resistance levels using standard, Woodie, Camarilla, and DeMark pivot points, along with essential Fibonacci retracement and extension levels. Profit & Loss Calculator Estimate your total profit or loss for a trade before executing it, factoring in commissions and spreads. Advanced Trading Tools Access specialized calculators for Leverage, Rebates, Swap/Rollover rates, and the Consistency Calculator to track your performance stability. Key Benefits: Professional Risk Management: Prioritize capital preservation with advanced risk-to-reward metrics. Offline Functionality: All calculators are available without data or Wi-Fi, perfect for trading on the move. Minimalist Design: A clean, high-performance interface designed for speed and clarity during intensive trading sessions. Comprehensive Currency Support: Works across all major, minor, and exotic currency pairs. Stop guessing and start calculating. Download Forex Calculators Offline today to bring institutional-grade precision to your retail trading strategy.
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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 additional tools like historical data analysis.
Assumption to check: Limited functionality compared to online forex calculators
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to save favorite currencies and settings.
Assumption to check: No user customization options
Validate with people who use this workflow before building.
Hypothesis 3
Integrate tutorials or tips on using forex tools.
Assumption to check: Lack of educational resources
Validate with people who use this workflow before building.
Hypothesis 4
Implement local storage for user preferences and history.
Assumption to check: No offline data backup options
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 Native
Expo
React Navigation
React Native Paper
axios
TypeScript
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
