# ChronoCalc vs Dual Calculator

The clearest difference is ads: ChronoCalc at none against Dual Calculator's shown. ChronoCalc also leads on iOS requirement (8.0 vs 15.0). Dual Calculator's advantage is update cadence (every 5 months vs every 12 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ChronoCalc ships an update every 12 months, Dual Calculator every 5 months. The most recent releases landed on September 25, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | ChronoCalc | Dual Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chronocalc/id927026325/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 237 MB | 33 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Augusta University](https://appshunter.io/developer/319778530) | [Huzaib Sayyed](https://appshunter.io/developer/1778310247) |

## What reviewers say

### ChronoCalc

[App page](https://appshunter.io/ios/app/chronocalc/id927026325)

This app simplifies time calculations, offering features like addition, subtraction, multiplication, and division of time intervals. It supports various time formats, millisecond precision, and provides an activity timer for elapsed time tracking.

**Highlights:** Time addition, subtraction, multiplication, division, Millisecond precision, AM/PM and 24-hour time formats, Intervals in H:M:S:MS or decimals, Activity timer for elapsed time, Convert between hours, minutes, seconds, milliseconds, Multiple color schemes

**Features:** macOS Compatibility

**In-app purchases:** none


### Dual Calculator

[App page](https://appshunter.io/ios/app/dual-calculator-split-screen/id6738931674)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChronoCalc free?

ChronoCalc is free to download, with no in-app purchases.

### Is Dual Calculator free?

Dual Calculator is free to download, with no in-app purchases.

### Do ChronoCalc or Dual Calculator have ads?

Dual Calculator shows ads; ChronoCalc does not.

### Which is updated more often, ChronoCalc or Dual Calculator?

ChronoCalc ships an update every 12 months, and Dual Calculator every 5 months. Most recently, ChronoCalc was updated on September 25, 2026 and Dual Calculator on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*