# 一信盾 vs 三局商链通

The clearest difference is in-app purchases: 三局商链通 at none against 一信盾's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 一信盾 sells 10 one-off in-app purchases. 三局商链通 asks for nothing beyond the download.

一信盾 ships an update every 5 weeks, 三局商链通 every 6 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 一信盾 | 三局商链通 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Size | 15 MB | 84 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [北京安证通信息科技股份有限公司](https://appshunter.io/developer/1102661826) | [中建三局云采供应链有限公司](https://appshunter.io/developer/1627379887) |

## What reviewers say

### 一信盾

[App page](https://appshunter.io/ios/app/id1527530998)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一信盾印章一年期套餐 | $41.99 | one-time |
| 一信盾印章1年期套餐 | $41.99 | one-time |
| 一信盾印章一年套餐 | $41.99 | one-time |
| 一信盾证书+电子印章两年套餐 | $74.99 | one-time |
| 一信盾印章两年期套餐 | $74.99 | one-time |
| 一信盾印章2年期套餐 | $74.99 | one-time |
| 一信盾印章两年套餐 | $74.99 | one-time |
| 一信盾证书+电子印章三年套餐 | $109.99 | one-time |
| 一信盾印章三年期套餐 | $109.99 | one-time |
| 一信盾印章三年套餐 | $109.99 | one-time |


### 三局商链通

[App page](https://appshunter.io/ios/app/id6449460063)

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

**In-app purchases:** none


## Frequently asked questions

### Is 一信盾 free?

一信盾 is free to download, with in-app purchases available.

### Is 三局商链通 free?

三局商链通 is free to download, with no in-app purchases.

### Do 一信盾 or 三局商链通 have ads?

Neither 一信盾 nor 三局商链通 shows ads.

### Which is updated more often, 一信盾 or 三局商链通?

一信盾 ships an update every 5 weeks, and 三局商链通 every 6 weeks. Most recently, 一信盾 was updated on November 7, 2026 and 三局商链通 on November 3, 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.*