# SynLink vs AI CometStack

The clearest difference is in-app purchases: SynLink at none against AI CometStack's 1. SynLink also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. AI CometStack sells 1 in-app purchase, starting at $9.99 per year. SynLink asks for nothing beyond the download.

## The numbers

| Metric | SynLink | AI CometStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/synlink/id6739761466/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 221 MB | 105 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) | [yong chong loh](https://appshunter.io/developer/393466709) |

## 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


### AI CometStack

[App page](https://appshunter.io/ios/app/ai-cometstack-comet-stacking/id6770419588)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $9.99 | per year |


## Frequently asked questions

### Is SynLink free?

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

### Is AI CometStack free?

AI CometStack is free to download, with in-app purchases available.

### Do SynLink or AI CometStack have ads?

Neither SynLink nor AI CometStack shows ads.

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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.*