# 掌证通 vs Digital Mirror+

The clearest difference is update cadence: Digital Mirror+ at every 3 weeks against 掌证通's every 19 months. 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.

掌证通 ships an update every 19 months, Digital Mirror+ every 3 weeks. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 掌证通 | Digital Mirror+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 weeks** |
| Size | 28 MB | 141 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Electronic Certificate Authority Center Co.,LTD](https://appshunter.io/developer/924307388) | [Guangzhou Yinli Keshi Electronic Equipment Co., Ltd.](https://appshunter.io/developer/1474574616) |

## What reviewers say

### 掌证通

[App page](https://appshunter.io/ios/app/id6450326978)

**Features:** Vision Pro support

**In-app purchases:** none


### Digital Mirror+

[App page](https://appshunter.io/ios/app/digital-mirror-plus/id6752015904)

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

**In-app purchases:** none


## Frequently asked questions

### Is 掌证通 free?

掌证通 is free to download, with no in-app purchases.

### Is Digital Mirror+ free?

Digital Mirror+ is free to download, with no in-app purchases.

### Do 掌证通 or Digital Mirror+ have ads?

Neither 掌证通 nor Digital Mirror+ shows ads.

### Which is updated more often, 掌证通 or Digital Mirror+?

掌证通 ships an update every 19 months, and Digital Mirror+ every 3 weeks. Most recently, 掌证通 was updated on October 10, 2026 and Digital Mirror+ on October 7, 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.*