Big Calculator is a fully accessible calculator and currency converter designed with visibility and usability in mind. Perfect for users who need larger displays, clear buttons, and enhanced accessibility features.

KEY FEATURES:

CALCULATOR
- Extra large number display with smart sizing
- High contrast, bold buttons for easy visibility
- Edge-to-edge display utilizes full screen width
- Automatic number formatting for your region
- Calculation history to review past operations
- Multiple color themes including high contrast modes
- Adjustable font size (50% to 150%)

CURRENCY CONVERTER
- Real-time conversion between 90+ world currencies
- Automatic detection of your local currency
- Large flag displays for easy recognition
- Smart number formatting based on locale
- One-tap currency swapping
- Search function to quickly find currencies

ACCESSIBILITY FIRST
- Designed for users with visual impairments
- Haptic feedback for every interaction
- Optional button sound effects
- High contrast themes for better visibility
- Large touch targets for easier interaction
- VoiceOver fully supported

THEMES
- Classic High Contrast
- Black & White
- Blue & Yellow (colorblind friendly)
- Pure Black & White (maximum contrast)
- Amber on Black (reduces eye strain)
- Light Mode

LOCALIZATION
- Supports all iOS languages
- Automatic number formatting (1,234.56 or 1.234,56)
- Correct decimal separators for your region
- Currency formatting for your locale

ADDITIONAL FEATURES
- Portrait orientation optimized
- Calculation history
- Percentage calculations
- Memory functions
- No ads, no subscriptions
- Works offline

Perfect for seniors, users with visual impairments, or anyone who prefers a cleaner, larger calculator interface.