Calculate percentages, tips, and discounts with customizable formulas. Input values to determine final prices or savings. Generate pie charts for visual representation. Convert fractions to percentages and calculate sales tax or markdowns.
Process credit card payments using a mobile card reader or manual entry. Accept payments from Visa, MasterCard, Discover, and American Express. Store customer payment information securely. Sync with POS systems for integrated payment handling.
Access engineering formulas for calculations, unit conversions, and property lookups. Input variables to solve equations. Store and organize formulas for quick reference. Export results and notes. Sync data across devices.
