# 凯力朗智能 vs 原创保护 Pro

The clearest difference is in-app purchases: 凯力朗智能 at none against 原创保护 Pro's 5. 凯力朗智能 also leads on iOS requirement (8.0 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. 凯力朗智能 asks for nothing beyond the download.

凯力朗智能 ships an update every 5 months, 原创保护 Pro every 4 months. The most recent releases landed on September 10, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | 凯力朗智能 | 原创保护 Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pro/id1613678947/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 49 MB | 3 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wenzhou Yunjia Network Technology Co., Ltd.](https://appshunter.io/developer/1448073059) | [Beijing Maoxianqiu Technology Co., Ltd.](https://appshunter.io/developer/1574811254) |

## What reviewers say

### 凯力朗智能

[App page](https://appshunter.io/ios/app/id1448073060)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 凯力朗智能 free?

凯力朗智能 is free to download, with no in-app purchases.

### Is 原创保护 Pro free?

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

### Do 凯力朗智能 or 原创保护 Pro have ads?

Neither 凯力朗智能 nor 原创保护 Pro shows ads.

### Which is updated more often, 凯力朗智能 or 原创保护 Pro?

凯力朗智能 ships an update every 5 months, and 原创保护 Pro every 4 months. Most recently, 凯力朗智能 was updated on September 10, 2026 and 原创保护 Pro on June 10, 2026.

---

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