# 原创保护 Pro vs 链存证

The clearest difference is in-app purchases: 链存证 at none against 原创保护 Pro's 5. 链存证 also leads on iOS requirement (12.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 原创保护 Pro sells 5 one-off in-app purchases. 链存证 asks for nothing beyond the download.

原创保护 Pro ships an update every 4 months, 链存证 every 2 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 原创保护 Pro | 链存证 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pro/id1613678947/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 3 MB | 93 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Maoxianqiu Technology Co., Ltd.](https://appshunter.io/developer/1574811254) | [福建中科星泰数据科技有限公司](https://appshunter.io/developer/1594139079) |

## What reviewers say

### 原创保护 Pro

[App page](https://appshunter.io/ios/app/pro/id1613678947)

Quickly obtain a notarized certificate for your creative works. This app provides proof of authorship with your identity, work fingerprint, and timestamp. It offers a simple, secure, and affordable solution for copyright protection.

**Highlights:** Creative work notarization, Identity and work fingerprint inclusion, Timestamping, Minimalist design (2MB), No registration or tracking, Encrypted data transmission and storage, Legal dispute evidence

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 原创保护 Pro 存证券 * 1 | $1.99 | one-time |
| 原创保护 Pro 存证券 * 3 | $4.99 | one-time |
| 原创保护 Pro 存证券 * 7 | $9.99 | one-time |
| 原创保护 Pro 存证券 * 12 | $15.99 | one-time |
| 原创保护 Pro 存证券 * 25 | $27.99 | one-time |


### 链存证

[App page](https://appshunter.io/ios/app/id1635891559)

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

**In-app purchases:** none


## Frequently asked questions

### Is 原创保护 Pro free?

原创保护 Pro is free to download, with in-app purchases available.

### Is 链存证 free?

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

### Do 原创保护 Pro or 链存证 have ads?

Neither 原创保护 Pro nor 链存证 shows ads.

### Which is updated more often, 原创保护 Pro or 链存证?

原创保护 Pro ships an update every 4 months, and 链存证 every 2 months. Most recently, 原创保护 Pro was updated on October 24, 2026 and 链存证 on October 12, 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.*