# Cosmo Desktop vs SynLink

The clearest difference is rating: Cosmo Desktop at 5.0 against SynLink's 4.3. SynLink's advantage is update cadence (fortnightly vs every 10 months) and device support (4 vs 2). On price, ratings volume, 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.

Cosmo Desktop holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Cosmo Desktop ships an update every 10 months, SynLink fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Cosmo Desktop | SynLink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cosmo-desktop/id556217911/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/synlink/id6739761466/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 6 MB | 221 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 9+ | 4+ |
| Developer | [Pulsely Consulting](https://appshunter.io/developer/475349326) | [Suzhou UMa Technology Co., Ltd](https://appshunter.io/developer/1786910791) |

## What reviewers say

### Cosmo Desktop

[App page](https://appshunter.io/ios/app/cosmo-desktop/id556217911)

Access stunning NASA astronomy pictures on your iOS device. Easily browse, save, and set them as your wallpaper. Enjoy a user-friendly interface for exploring the cosmos.

**Highlights:** View NASA astronomy pictures, User-friendly browsing interface, Save pictures to photo album, Set pictures as iOS wallpaper, Free and ad-less experience

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

**In-app purchases:** none


### SynLink

[App page](https://appshunter.io/ios/app/synlink/id6739761466)

This professional controller facilitates astrophotography by offering broad compatibility with major camera brands and astronomical equipment. Its design emphasizes simplicity, restraint, and modernity for an intuitive user experience.

**Highlights:** Broad camera compatibility (Fujifilm, Canon, Nikon, Sony), Supports astronomical cameras, Controls equatorial mounts, Manages filter wheels and focusers, Modern and simple interface

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cosmo Desktop free?

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

### Is SynLink free?

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

### Which has better reviews, Cosmo Desktop or SynLink?

Cosmo Desktop is rated higher. Cosmo Desktop averages 5.0 out of 5 from 2 ratings, while SynLink averages 4.3 from 3 ratings.

### Do Cosmo Desktop or SynLink have ads?

Neither Cosmo Desktop nor SynLink shows ads.

### Which is updated more often, Cosmo Desktop or SynLink?

Cosmo Desktop ships an update every 10 months, and SynLink fortnightly. Most recently, Cosmo Desktop was updated on November 1, 2026 and SynLink on October 30, 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.*