# OpenCat vs WatchPet

The clearest difference is in-app purchases: OpenCat at none against WatchPet's 6. OpenCat also leads on iOS requirement (14.0 vs 17.0). WatchPet's advantage is update cadence (every 3 days vs every 6 days). On price, ads and device support there is nothing between them.

Both are free to download. WatchPet sells 6 in-app purchases, starting at $2.99 per month. OpenCat asks for nothing beyond the download.

OpenCat ships an update every 6 days, WatchPet every 3 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OpenCat | WatchPet |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 3 days** |
| Size | 20 MB | 532 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Shuai Yuan](https://appshunter.io/developer/1464857207) | [佳文 陈](https://appshunter.io/developer/6809271618) |

## What reviewers say

### OpenCat

[App page](https://appshunter.io/ios/app/opencat/id6760046128)

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

**In-app purchases:** none


### WatchPet

[App page](https://appshunter.io/ios/app/watchpet-digital-pet/id6817405040)

**Features:** Apple Watch app

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Yearly Plan | $17.99 | per year |
| 100 Crystals | $3.99 | one-time |
| 300 Crystals | $10.99 | one-time |
| Liftetime member | $29.99 | one-time |
| 999 Crystals | $34.99 | one-time |


## Frequently asked questions

### Is OpenCat free?

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

### Is WatchPet free?

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

### Do OpenCat or WatchPet have ads?

Neither OpenCat nor WatchPet shows ads.

### Which is updated more often, OpenCat or WatchPet?

OpenCat ships an update every 6 days, and WatchPet every 3 days. Most recently, OpenCat was updated on October 28, 2026 and WatchPet on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*