# ChronoCalc vs Calculator CIassic

The clearest difference is in-app purchases: ChronoCalc at none against Calculator CIassic's 1. ChronoCalc also leads on ads (none vs shown) and iOS requirement (8.0 vs 12.0). Calculator CIassic's advantage is update cadence (weekly vs every 12 months) and ratings volume (12 vs 2). On price, rating and device support there is nothing between them.

Both are free to download. Calculator CIassic sells 1 one-off in-app purchase. ChronoCalc asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for ChronoCalc against 4.9 for Calculator CIassic. That said, the two scores are not equally well evidenced: Calculator CIassic has 12 ratings behind it against 2, so its average is the more settled of the two.

ChronoCalc ships an update every 12 months, Calculator CIassic weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | ChronoCalc | Calculator CIassic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chronocalc/id927026325/reviews)** | [4.9 (12 ratings)](https://appshunter.io/ios/app/calculator-ciassic/id6447488409/reviews) |
| Number of ratings | 2 | **12** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 237 MB | 62 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Augusta University](https://appshunter.io/developer/319778530) | [Edison Largo](https://appshunter.io/developer/978541799) |

## 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


### Calculator CIassic

[App page](https://appshunter.io/ios/app/calculator-ciassic/id6447488409)

A straightforward and user-friendly calculator app designed for quick calculations. It features a display log for tracking calculations, a backspace key for corrections, and supports both decimal points and commas.

**Highlights:** Display log for calculations, Backspace key for corrections, Decimal point and comma support, Easy-to-use interface, Suitable for students and professionals

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is ChronoCalc free?

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

### Is Calculator CIassic free?

Calculator CIassic is free to download, with in-app purchases available.

### Which has better reviews, ChronoCalc or Calculator CIassic?

ChronoCalc is rated higher. ChronoCalc averages 5.0 out of 5 from 2 ratings, while Calculator CIassic averages 4.9 from 12 ratings.

### Do ChronoCalc or Calculator CIassic have ads?

Calculator CIassic shows ads; ChronoCalc does not.

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

ChronoCalc ships an update every 12 months, and Calculator CIassic weekly. Most recently, ChronoCalc was updated on October 24, 2026 and Calculator CIassic on October 24, 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.*