---
title: "ChronoSum - Reviews, Revenue and Downloads in Brunei | Apple App Store"
description: "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 F"
---

# ChronoSum — Brunei
> Hours & minutes calculator

![ChronoSum App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/41/42/ac/4142ac23-c523-9c83-cc6c-072508864cd6/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Tiago Melo](https://apptail.io/developer/tiago-melo-avaeZb)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** info.tiagomelo.chronosum
**Store:** Apple App Store
**Country:** Brunei
**Version:** 1.0.1 (released 2026-05-30)
**Original Release:** 2026-05-27
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/bn/app/app/id6772844618)
**AppTail Page:** [https://apptail.io/app/chronosum-time-calculator-TCRz/brunei](https://apptail.io/app/chronosum-time-calculator-TCRz/brunei)

## ChronoSum Description
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.

## ChronoSum Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3f/9b/0a/3f9b0a8c-fc47-0b49-4dae-d547efed6fc6/1.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/af/33/66/af3366f2-ac4d-52cd-d212-5da570be715b/2.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/95/18/20/95182085-42cb-1578-dbc7-422a79ba2108/3.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/60/66/a7/6066a7a6-8132-c488-854e-7c3e81a9e412/4.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2f/3f/25/2f3f25fc-b990-bc4c-6213-b24d21063ddd/5.png/1242x2688.png)







## ChronoSum Available In
- [Brunei](https://apptail.io/app/chronosum-time-calculator-TCRz/brunei)
- [Botswana](https://apptail.io/app/chronosum-time-calculator-TCRz/botswana)
- [Belarus](https://apptail.io/app/chronosum-time-calculator-TCRz/belarus)
- [Dominican Republic](https://apptail.io/app/chronosum-time-calculator-TCRz/dominican-republic)
- [United Kingdom](https://apptail.io/app/chronosum-time-calculator-TCRz/united-kingdom)
- [South Korea](https://apptail.io/app/chronosum-time-calculator-TCRz/south-korea)
- [Mauritius](https://apptail.io/app/chronosum-time-calculator-TCRz/mauritius)
- [Pakistan](https://apptail.io/app/chronosum-time-calculator-TCRz/pakistan)
- [Russia](https://apptail.io/app/chronosum-time-calculator-TCRz/russia)
- [Slovenia](https://apptail.io/app/chronosum-time-calculator-TCRz/slovenia)
- [Ukraine](https://apptail.io/app/chronosum-time-calculator-TCRz/ukraine)
- [United States](https://apptail.io/app/chronosum-time-calculator-TCRz/united-states)

---

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