# Space Images vs SynLink

The clearest difference is in-app purchases: SynLink at none against Space Images's 1. SynLink also leads on device support (4 vs 2) and iOS requirement (15.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Space Images sells 1 one-off in-app purchase. SynLink asks for nothing beyond the download.

Space Images ships an update every 3 weeks, SynLink fortnightly. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Space Images | SynLink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/synlink/id6739761466/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 20 MB | 221 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 9+ | 4+ |
| Developer | [Ezequiel Barreto](https://appshunter.io/developer/1522603357) | [Suzhou UMa Technology Co., Ltd](https://appshunter.io/developer/1786910791) |

## What reviewers say

### Space Images

[App page](https://appshunter.io/ios/app/space-images-spacegram/id1522603295)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### 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 Space Images free?

Space Images is free to download, with in-app purchases available.

### Is SynLink free?

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

### Do Space Images or SynLink have ads?

Neither Space Images nor SynLink shows ads.

### Which is updated more often, Space Images or SynLink?

Space Images ships an update every 3 weeks, and SynLink fortnightly. Most recently, Space Images was updated on October 11, 2026 and SynLink on October 25, 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.*