# e签盾 vs 中工上签

The clearest difference is in-app purchases: 中工上签 at none against e签盾's 1. 中工上签 also leads on iOS requirement (13.0 vs 15.0). e签盾's advantage is device support. On price there is nothing between them.

Both are free to download. e签盾 sells 1 one-off in-app purchase. 中工上签 asks for nothing beyond the download.

## The numbers

| Metric | e签盾 | 中工上签 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e/id6450947024/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 146 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Timevale Information Technology Co., Ltd.](https://appshunter.io/developer/997614072) | [Gansu Zhonggong International Tendering Co., Ltd](https://appshunter.io/developer/1829962856) |

## What reviewers say

### e签盾

[App page](https://appshunter.io/ios/app/e/id6450947024)

This app provides a comprehensive solution for CA digital certificate management and application. It offers secure identity authentication and electronic signature services for various platforms, eliminating the need for hardware management.

**Highlights:** Online digital certificate application, Secure CA + mobile security module, Hardware-free mobile CA, Admin authorization and permission control, Full-chain evidence preservation, Integration with legal institutions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| （Apple专用）签署流量包1份 | $0.99 | one-time |


### 中工上签

[App page](https://appshunter.io/ios/app/id6749314332)

**In-app purchases:** none


## Frequently asked questions

### Is e签盾 free?

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

### Is 中工上签 free?

中工上签 is free to download, with no in-app purchases.

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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.*