# 专利大王 vs 玺消卫士

The clearest difference is in-app purchases: 玺消卫士 at none against 专利大王's 5. 玺消卫士 also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 专利大王 sells 5 one-off in-app purchases. 玺消卫士 asks for nothing beyond the download.

专利大王 ships an update every 5 weeks, 玺消卫士 every 6 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 专利大王 | 玺消卫士 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Size | 36 MB | 32 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BEIJING INCOIDEA CO.LTD](https://appshunter.io/developer/1262262808) | [Qingdao EQLink Technology Co., Ltd.](https://appshunter.io/developer/1500827798) |

## What reviewers say

### 专利大王

[App page](https://appshunter.io/ios/app/id1091971568)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 专利大王VIP月卡 | $8.99 | one-time |
| 专利大王VIP季卡 | $19.99 | one-time |
| 专利大王VIP半年卡 | $34.99 | one-time |
| 专利大王VIP年卡 | $59.99 | one-time |
| 专利大王VIP年费会员 | $64.99 | one-time |


### 玺消卫士

[App page](https://appshunter.io/ios/app/id6444875631)

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

**In-app purchases:** none


## Frequently asked questions

### Is 专利大王 free?

专利大王 is free to download, with in-app purchases available.

### Is 玺消卫士 free?

玺消卫士 is free to download, with no in-app purchases.

### Do 专利大王 or 玺消卫士 have ads?

专利大王 shows ads; 玺消卫士 does not.

### Which is updated more often, 专利大王 or 玺消卫士?

专利大王 ships an update every 5 weeks, and 玺消卫士 every 6 weeks. Most recently, 专利大王 was updated on November 6, 2026 and 玺消卫士 on October 30, 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.*