# ChronoCalc vs SimpleCalc.

The clearest difference is iOS requirement: ChronoCalc at 8.0 against SimpleCalc.'s 15.0. On price, update cadence, ads and in-app purchases 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, SimpleCalc. every 7 months. The most recent releases landed on September 25, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ChronoCalc | SimpleCalc. |
| --- | --- | --- |
| 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 | No |
| Update frequency | Every 12 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 237 MB | 16 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Augusta University](https://appshunter.io/developer/319778530) | [Romain Rousseau](https://appshunter.io/developer/1645997193) |

## 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


### SimpleCalc.

[App page](https://appshunter.io/ios/app/simplecalc/id6447461450)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChronoCalc free?

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

### Is SimpleCalc. free?

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

### Do ChronoCalc or SimpleCalc. have ads?

Neither ChronoCalc nor SimpleCalc. shows ads.

### Which is updated more often, ChronoCalc or SimpleCalc.?

ChronoCalc ships an update every 12 months, and SimpleCalc. every 7 months. Most recently, ChronoCalc was updated on September 25, 2026 and SimpleCalc. on October 2, 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.*