# Sun Clock App vs Desktop Astro Clock

The clearest difference is rating: Sun Clock App at 4.3 against Desktop Astro Clock's 3.7. Sun Clock App also leads on iOS requirement (9.0 vs 17.0). Desktop Astro Clock's advantage is in-app purchases (none vs 1) and update cadence (every 9 months vs every 33 months). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Sun Clock App sells 1 one-off in-app purchase. Desktop Astro Clock asks for nothing beyond the download.

Sun Clock App holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

Sun Clock App ships an update every 33 months, Desktop Astro Clock every 9 months. The most recent releases landed on September 25, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Sun Clock App | Desktop Astro Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/sun-clock-app/id1104328257/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/desktop-astro-clock/id1588806370/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 9 months** |
| Monetization | Free | Free |
| Size | 2 MB | 416 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [BEHR Consulting International](https://appshunter.io/developer/385816833) |

## What reviewers say

### Sun Clock App

[App page](https://appshunter.io/ios/app/sun-clock-app/id1104328257)

This utility app displays the current time and the sun's position for your location. It shows solar time, sunrise, and sunset, with options to toggle seconds and 12/24-hour formats. The app automatically updates your location and can keep your device awake for continuous display.

**Highlights:** Shows solar time, Displays sunrise and sunset times, Toggle seconds display, 12/24 hour format option, Automatic location updates, Keeps device awake

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sun Clock - Upgrade | $0.99 | one-time |


### Desktop Astro Clock

[App page](https://appshunter.io/ios/app/desktop-astro-clock/id1588806370)

This utility app displays time in various formats, including Julian, Sidereal, and GMT. It offers always-on display options, moon and meteor shower information, and customizable clock configurations. Widgets and a watchOS app are also supported for enhanced functionality.

**Highlights:** Multiple time formats (Julian, Sidereal, GMT), Always-on display with battery threshold, Moon phase and meteor shower information, Customizable display configurations, Widget support, WatchOS app with specialized displays

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sun Clock App free?

Sun Clock App is free to download, with in-app purchases available.

### Is Desktop Astro Clock free?

Desktop Astro Clock is free to download, with no in-app purchases.

### Which has better reviews, Sun Clock App or Desktop Astro Clock?

Sun Clock App is rated higher. Sun Clock App averages 4.3 out of 5 from 4 ratings, while Desktop Astro Clock averages 3.7 from 3 ratings.

### Do Sun Clock App or Desktop Astro Clock have ads?

Neither Sun Clock App nor Desktop Astro Clock shows ads.

### Which is updated more often, Sun Clock App or Desktop Astro Clock?

Sun Clock App ships an update every 33 months, and Desktop Astro Clock every 9 months. Most recently, Sun Clock App was updated on September 25, 2026 and Desktop Astro Clock on September 19, 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.*