# BMD数字证书 vs 昌黎市民通

The clearest difference is update cadence: 昌黎市民通 at every 10 days against BMD数字证书's every 4 months. BMD数字证书's advantage is iOS requirement (8.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BMD数字证书 ships an update every 4 months, 昌黎市民通 every 10 days. The most recent releases landed on September 14, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | BMD数字证书 | 昌黎市民通 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 12 MB | 48 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai F-road Commerce Service Co.,Ltd](https://appshunter.io/developer/561883025) | [河北科艺智慧能源发展有限公司](https://appshunter.io/developer/1586933335) |

## What reviewers say

### BMD数字证书

[App page](https://appshunter.io/ios/app/bmd/id1619735633)

Manage your thin film hardware digital certificates with this tool. It offers efficient, convenient, and professional management for signing, password changes, and COS operations.

**Highlights:** Hardware digital certificate management, Signing management, Password management, COS management, Efficient and convenient tool, Simple operation

**Features:** macOS Compatibility

**In-app purchases:** none


### 昌黎市民通

[App page](https://appshunter.io/ios/app/id6478201346)

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

**In-app purchases:** none


## Frequently asked questions

### Is BMD数字证书 free?

BMD数字证书 is free to download, with no in-app purchases.

### Is 昌黎市民通 free?

昌黎市民通 is free to download, with no in-app purchases.

### Do BMD数字证书 or 昌黎市民通 have ads?

Neither BMD数字证书 nor 昌黎市民通 shows ads.

### Which is updated more often, BMD数字证书 or 昌黎市民通?

BMD数字证书 ships an update every 4 months, and 昌黎市民通 every 10 days. Most recently, BMD数字证书 was updated on September 14, 2026 and 昌黎市民通 on September 17, 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.*