Forexizer: Fast Position Size Calculator

🎯 Problem & Solution

The Challenge

For funded traders managing multiple accounts, calculating position sizes across different asset classes is time-consuming and error-prone. Traditional methods require manual calculations for each account, leading to:

• Time wasted on repetitive calculations
• Risk of human error in position sizing
• Difficulty managing multiple account specifications like contract sizes
• Inefficient workflow during fast market conditions

Our Solution

Forexizer eliminates these pain points with an intuitive mobile interface that:

• Stores contract specifications for all your accounts in one place
• Calculates position sizes instantly across all supported asset classes
• Supports multiple account types with different risk parameters
• Provides instant results during live trading conditions

🚀 Key Features

Core Functionality

• Multi-Asset Support: Forex pairs, Indices, Commodities, and Cryptocurrencies
• Multiple Account Management: Store and switch between different funded accounts
• Instant Calculations: Real-time position sizing based on risk parameters
• Contract Size Storage: Save and retrieve contract specifications for all instruments
• Risk Percentage Trading: Calculate positions based on account balance and risk tolerance

Advanced Features

• Currency Conversion: Automatic conversion between different account currencies
• Pip Value Calculation: Built-in pip value calculator for precise risk management
• History Tracking: Keep track of your position sizing calculations
• Customizable Parameters: Adjust risk percentages, stop losses, and account details
• Premium Subscription Tier: Unlocks additional accounts and features for active traders
• Customer Center: Manage your subscription directly from Settings
• Sync & Transfer: Move accounts, history, and preferences between devices with no manual re-entry
• macOS Support: Available on M-series Macs via the Mac App Store, synced with your phone via Sync & Transfer

🛠 Technical Implementation

Mobile Development Stack

• React Native: Cross-platform mobile development for iOS and Android
• Expo: Streamlined development and deployment workflow
• React Navigation: Smooth in-app navigation and user flows

Backend Infrastructure

• Node.js: Server-side JavaScript runtime for API services
• Express.js: RESTful API for data synchronization and user management
• MongoDB: NoSQL database for flexible data storage
• Railway: Cloud deployment platform for scalable hosting

Monetization & Analytics

• RevenueCat: Subscription management and in-app purchases
• Apple App Store: iOS distribution and payment processing
• Google Play Store: Android distribution and payment processing

📊 User Metrics

Adoption

• 700+ downloads across iOS, Android, and macOS platforms
• Premium subscribers with access to additional accounts and features

🔮 Development Roadmap

Shipped in 1.6

• Sync & Transfer: Move accounts, history, and preferences to any device
• macOS support: Available on M-series Macs via the Mac App Store
• Redesigned UI: Every screen rebuilt for a cleaner, more consistent look
• Fixed subscription lock bug: App now waits for confirmed status before making any account changes
• Expo SDK 54 upgrade: Compatibility with Xcode 26 and the latest iOS and Android releases
• More efficient exchange-rate requests when running multiple accounts
• Discord community link added in Settings

Planned Enhancements

• Secondary Risk Parameter for accounts