# 盾构慧通 vs Peace Bell

The clearest difference is in-app purchases: 盾构慧通 at none against Peace Bell's 3. 盾构慧通 also leads on iOS requirement (9.0 vs 16). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Peace Bell sells 3 one-off in-app purchases. 盾构慧通 asks for nothing beyond the download.

盾构慧通 ships an update monthly, Peace Bell every 3 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 盾构慧通 | Peace Bell |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 20 MB | 9 MB |
| Requires iOS | **9.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [中铁一局集团有限公司智能科技分公司](https://appshunter.io/developer/1470908823) | [Foshan Qizhizhu Technology Co., Ltd.](https://appshunter.io/developer/1787171342) |

## What reviewers say

### 盾构慧通

[App page](https://appshunter.io/ios/app/id1474501253)

**In-app purchases:** none


### Peace Bell

[App page](https://appshunter.io/ios/app/peace-bell/id6759832668)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Regular Member | $0.99 | one-time |
| Monthly Premium Membership | $0.99 | one-time |
| Annual Premium Member | $7.99 | one-time |


## Frequently asked questions

### Is 盾构慧通 free?

盾构慧通 is free to download, with no in-app purchases.

### Is Peace Bell free?

Peace Bell is free to download, with in-app purchases available.

### Do 盾构慧通 or Peace Bell have ads?

Neither 盾构慧通 nor Peace Bell shows ads.

### Which is updated more often, 盾构慧通 or Peace Bell?

盾构慧通 ships an update monthly, and Peace Bell every 3 weeks. Most recently, 盾构慧通 was updated on October 29, 2026 and Peace Bell on October 28, 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.*