# SynLink vs Celvion Scout

The clearest difference is in-app purchases: SynLink at none against Celvion Scout's 4. SynLink also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). Celvion Scout's advantage is update cadence (every 6 days vs fortnightly). On price and ads there is nothing between them.

Both are free to download. Celvion Scout sells 4 in-app purchases, starting at $4.99 per month. SynLink asks for nothing beyond the download.

SynLink ships an update fortnightly, Celvion Scout every 6 days. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SynLink | Celvion Scout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/synlink/id6739761466/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Free | — |
| Size | 199 MB | 53 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Suzhou UMa Technology Co., Ltd](https://appshunter.io/developer/1786910791) | [新庾 郭](https://appshunter.io/developer/6786308122) |

## What reviewers say

### 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


### Celvion Scout

[App page](https://appshunter.io/ios/app/celvion-scout/id6800975710)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Celvion Pro Monthly | $4.99 | per month |
| Celvion Studio Monthly | $9.99 | per month |
| Celvion Pro Annual | $29.99 | per year |
| Celvion Studio Annual | $79.99 | per year |


## Frequently asked questions

### Is SynLink free?

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

### Is Celvion Scout free?

Celvion Scout is free to download, with in-app purchases available.

### Do SynLink or Celvion Scout have ads?

Neither SynLink nor Celvion Scout shows ads.

### Which is updated more often, SynLink or Celvion Scout?

SynLink ships an update fortnightly, and Celvion Scout every 6 days. Most recently, SynLink was updated on September 30, 2026 and Celvion Scout on October 6, 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.*