Chrono Calc - Time Calculator
Easy HH:MM math
$0.99 · Designed for iPad. Not verified for macOS.
Chrono Calc is a calculator built specifically for working with time.
Add, subtract, multiply, and divide time values without converting everything by hand. Enter durations naturally, like 12:30, 01:45, or 12:05:30, and Chrono Calc automatically formats the result using the units you choose.
Whether you are totaling hours, subtracting elapsed time, breaking time into parts, or converting smaller units into decimals, Chrono Calc keeps the workflow fast and familiar.
Features:
- Add and subtract time values
- Multiply or divide durations by regular numbers
- Choose your unit range: days, hours, minutes, and seconds
- Convert the smallest unit into a decimal of the next larger unit
- Automatic time formatting as you type
- Calculation history with undo
- Light and dark mode support
- Works offline
- No account required
Chrono Calc is designed for schedules, billing, production timing, workouts, travel planning, shift work, aviation, media, and any workflow where normal calculators make time difficult to work with.
The developer, Auxiliary Development LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Auxiliary Development LLC
- Size
- 3.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Auxiliary Development LLC
