# CatClock vs EHangOS

The clearest difference is in-app purchases: EHangOS at none against CatClock's 2. EHangOS also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. CatClock sells 2 in-app purchases, starting at $1.99 per month. EHangOS asks for nothing beyond the download.

## The numbers

| Metric | CatClock | EHangOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 60 MB | 66 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [博阳 秘](https://appshunter.io/developer/1835344696) | [Ehang, Inc.](https://appshunter.io/developer/942404339) |

## What reviewers say

### CatClock

[App page](https://appshunter.io/ios/app/catclock-diy-desktop-pet-clock/id6758552140)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly | $1.99 | per month |
| lifetime | $1.99 | one-time |


### EHangOS

[App page](https://appshunter.io/ios/app/ehangos/id6795453535)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CatClock free?

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

### Is EHangOS free?

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

### Do CatClock or EHangOS have ads?

Neither CatClock nor EHangOS 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.*