# Star Catalogue vs CoolSync

Star Catalogue and CoolSync are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Star Catalogue ships an update every 6 weeks, CoolSync every 3 weeks. The most recent releases landed on September 9, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Star Catalogue | CoolSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 88 MB | 67 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Blue Star Limited](https://appshunter.io/developer/1071535181) | [Horizon Webinfo Private Limited](https://appshunter.io/developer/1755711122) |

## What reviewers say

### Star Catalogue

[App page](https://appshunter.io/ios/app/star-catalogue/id1520352873)

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

**In-app purchases:** none


### CoolSync

[App page](https://appshunter.io/ios/app/coolsync/id6747580422)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Star Catalogue free?

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

### Is CoolSync free?

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

### Do Star Catalogue or CoolSync have ads?

Neither Star Catalogue nor CoolSync shows ads.

### Which is updated more often, Star Catalogue or CoolSync?

Star Catalogue ships an update every 6 weeks, and CoolSync every 3 weeks. Most recently, Star Catalogue was updated on September 9, 2026 and CoolSync on September 15, 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.*