Convert units between different systems with a simple interface. Perform basic and advanced calculations. View and switch between time zones with an intuitive world clock.
by YUTA OKAJIMA★ 4.73 ratingsUtilitiesFreeData updated 2026-09-08
Perform continuous arithmetic operations with a clean interface. Add, subtract, multiply, or divide numbers sequentially. Clear entries and view results instantly without needing to restart calculations.
The app offers unit conversions for area, energy, temperature, length, weight, speed, pressure, power, volume, and time. Users can access conversions through a window, status bar app widget, or Touch Bar.
A clock displays the time clearly with customizable background photos. Users can switch between portrait and landscape modes. No advertisements are included.
Track work hours with one-tap clock in/out and automatic time logging. Calculate real-time pay including overtime. Deduct breaks automatically. Apply shift differentials, weekend bonuses, and time-based premiums. View detailed pay period summaries.
The app displays world clock times within the Notification Center. Users can interact with clocks to adjust and compare times across different locations.
Track and attendance in real time. Manage employee shifts and overtime. Generate reports for payroll and invoices. Organize schedules and view shift details. Log time quickly with an intuitive interface.
Perform electrical engineering calculations with and capacitor tools. Calculate filters, attenuators, rectifiers, and oscillators. Convert units like Lumen to Candela and Delta to Y. Analyze skin effect and PCB trace impedance.
The app offers four distinct calculator tabs, each with a unique color. It allows users to perform calculations, plot graphs, and solve equations without clearing previous results.
Offers a standard and scientific with over 30 operations. It supports iCloud sync across devices. Users can add notes to calculation history and share entries. A live voice is available.
The app performs fast calculations using the rule of three. It offers a modern interface with options for displaying results, including thousands separators and decimal digits.
Calculate , cement bags, and sand volume for projects. Choose units based on regional standards. Input project dimensions to get accurate material estimates.
Calculate , headwind, and tailwind components for safe landings and takeoffs. Determine descent rates and distances for accurate navigation. Convert units between imperial and metric systems. Perform fuel burn and time en route calculations.
Units across categories like length, mass, data, area, and temperature. Select from numerous units within each category. Save frequently used conversions. Share results via copy or email.