# ChronoSum: Time Calculator — Add & subtract hours, minutes

> Add & subtract hours, minutes (iPhone/iPad app by Tiago Melo.)

- Source: https://appshunter.io/ios/app/chronosum-time-calculator/id6772844618 (this page in markdown: same URL + `.md`)
- Developer: [Tiago Melo](https://appshunter.io/developer/1886966352)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-05-27
- Data updated: 2026-06-30
- User reviews in markdown: https://appshunter.io/ios/app/chronosum-time-calculator/id6772844618/reviews.md

## What is ChronoSum?

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.


## Version history (last 2 releases)

### 1.0.1 — 2026-05-30

Minor adjustments

### 1.0 — 2026-05-27

No release notes.

## More apps by Tiago Melo

- [Make Your Photo Puzzle](https://appshunter.io/ios/app/make-your-photo-puzzle/id6760949600)
- [Make Your Photo Memory Cards](https://appshunter.io/ios/app/make-your-photo-memory-cards/id6761312326)
- [Simple Bluetooth Mic](https://appshunter.io/ios/app/simple-bluetooth-mic/id6761695098)
- [The Perfect Stop](https://appshunter.io/ios/app/the-perfect-stop/id6762573404)
- [Orbit: Event Hub](https://appshunter.io/ios/app/orbit-event-hub/id6763550938)
- [Weight And Balance Calculator](https://appshunter.io/ios/app/weight-and-balance-calculator/id6766536819)

All apps by Tiago Melo: https://appshunter.io/developer/1886966352

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-30.*