Track time-based progress with live percentage updates. Create progress bars for tasks, goals, or events by setting start and end times. Calculate percentages, increases, decreases, and comparisons using the built-in calculator.
by Justin Spain★ 5.06 ratingsProductivityFreeData updated 2026-09-06
Perform basic arithmetic operations including addition, subtraction, multiplication, and division. Access scientific functions for advanced calculations. Convert units between different measurement systems.
Plus allows users to perform basic math operations including addition, subtraction, division, multiplication, squaring, and square root. It features large buttons, clear numerals, and horizontal mode for additional controls.
Perform basic calculations in portrait mode and scientific calculations in landscape. Use root, power, factorial, exponential, division, logarithm, and trigonometric functions. Features a flat UI design similar to built-in iOS apps.
Monitor remaining life for music, videos, calls, and internet use. Hide icons to show only time and percentage or just the . Touch screen to toggle display modes.
Perform complex mathematical calculations using scientific functions and simple arithmetic. Calculate percentages, taxes, and financial figures. Save and share results with others. Syncs with iPad and iPhone.
Calculate with a dual-line display showing input and result simultaneously. Use percentage and backspace functions. Switch between 18 color themes. Enter multi-line equations. Automatically format scientific expressions.
Calculate beverage costs by adjusting sliders for product, , , and margin. Determine pricing based on target percentage. Automatically compute charges without manual input.
Calculate percentages, discounts, and tips. Input total cost, tip , and number of people to determine total value, tip amount, and individual share. Set currency preferences and perform -based calculations.
Calculate of values, increase or decrease values by a percentage, and find the original value before a percentage change. Set custom values, view step-by-step calculations, and save results for future reference.
Calculate costs and percentages for building projects. Estimate quantities needed for walls, floors, and roofs. Convert measurements between units. Track project budgets and adjust estimates in real time. Export calculations to PDF or email.
Calculate tips by entering bill amounts and selecting gratuity percentages. Split tips among multiple people. Choose custom tip percentages. Share total amounts with contacts. Save frequently used tip rates.