ChronoSum: Time Calculator
Add & subtract hours, minutes
Free · Designed for iPad. Not verified for macOS.
ChronoSum is a clean, fast calculator for adding and subtracting hours
and minutes. Think of it as a duration tape — you key in a time, press +
or −, and the running total updates instantly.
USE IT FOR
• Flight time
• Work hours and timesheets
• Study sessions and exam prep
• Workout duration
• Project time tracking
• Shift calculations
• Travel duration
• Freelance billing prep
FEATURES
• Calculator-style keypad with real arithmetic semantics
• Live calculation tape — every entry is visible and editable
• Tap a row to edit, swipe to delete, swipe to flip + / −
• Save calculations to local history; tap any history entry to reopen it
• Share the result as a clean plain-text arithmetic block
• Display the total as hours and minutes, compact (3h09), or decimal hours
• Type a bare number as minutes or hours — your choice
PRIVACY
All your calculations stay on your iPhone. ChronoSum has no account, no
login, no backend, and no analytics. The only network traffic is the
in-app banner ad served by Google AdMob.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor adjustments
The developer, Tiago Melo, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tiago Melo
- Size
- 4.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Tiago Melo