# Calendar Clock vs Height Converter

The clearest difference is price: Height Converter at Free against Calendar Clock's $0.99. Height Converter also leads on iOS requirement (13.4 vs 26.5). Calendar Clock's advantage is in-app purchases (none vs 3). On review sentiment, update cadence, ads and monetization model there is nothing between them.

Height Converter is free to download; Calendar Clock costs $0.99 up front. Height Converter sells 3 in-app purchases, starting at $0.99 per 7 days. Calendar Clock asks for nothing beyond the download.

Calendar Clock ships an update every 41 months, Height Converter every 69 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calendar Clock | Height Converter |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.8 (25 ratings)](https://appshunter.io/ios/app/height-converter/id1535443429/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 41 months** | Every 69 months |
| Monetization | Paid | Paid |
| Size | 4 MB | 2 MB |
| Requires iOS | 26.5 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Systemiko Inc.](https://appshunter.io/developer/680630947) | [Anna Filobok](https://appshunter.io/developer/1613515832) |

## What reviewers say

### Calendar Clock

[App page](https://appshunter.io/ios/app/calendar-clock/id1451445740)

This app displays the current year, month, week, and time on a single screen with a clean design. It offers customizable theme colors and functions as a desk clock. The app disables device sleep mode while active.

**Highlights:** All-in-one screen display, Year, month, week, day, hour, minute, second, Switchable theme colors (dark, light, green, blue), Disables device sleep mode, Acts as a desk clock

**Features:** macOS Compatibility

**In-app purchases:** none


### Height Converter

[App page](https://appshunter.io/ios/app/height-converter/id1535443429)

Easily convert heights between various units including feet, centimeters, inches, meters, and millimeters. This tool is designed for quick and accurate conversions for professionals and travelers alike.

**Highlights:** Converts between Feet, Centimetre, Inch, Meter, Millimetre, Fast and accurate conversions, Simple user interface, Useful for builders and travelers

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per 7 days |
| Premium Access | $1.99 | per month |
| Premium Access | $5.99 | per year |


## Frequently asked questions

### Is Calendar Clock free?

Calendar Clock costs $0.99, with no in-app purchases.

### Is Height Converter free?

Height Converter is free to download, with in-app purchases available.

### Do Calendar Clock or Height Converter have ads?

Neither Calendar Clock nor Height Converter shows ads.

### Which is updated more often, Calendar Clock or Height Converter?

Calendar Clock ships an update every 41 months, and Height Converter every 69 months. Most recently, Calendar Clock was updated on October 15, 2026 and Height Converter 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.*