ChronoSum: Time Calculator

By Tiago Melo on AppTrack Ninja.

Add & subtract hours, minutes

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 hi…

Categories: Utilities, Productivity

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