# SII DPU vs 浙江CA互认

The clearest difference is iOS requirement: 浙江CA互认 at 9.2 against SII DPU's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

SII DPU ships an update every 10 months, 浙江CA互认 every 7 months. The most recent releases landed on December 22, 2025 and September 9, 2026 respectively.

## The numbers

| Metric | SII DPU | 浙江CA互认 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 7 months** |
| Size | 1 MB | 97 MB |
| Requires iOS | 13.0 | **9.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seiko Instruments Inc.](https://appshunter.io/developer/430532225) | [Zhejiang public resources trading center](https://appshunter.io/developer/1583677802) |

## What reviewers say

### SII DPU

[App page](https://appshunter.io/ios/app/sii-dpu/id982214891)

**In-app purchases:** none


### 浙江CA互认

[App page](https://appshunter.io/ios/app/ca/id1583677800)

**In-app purchases:** none


## Frequently asked questions

### Is SII DPU free?

SII DPU is free to download, with no in-app purchases.

### Is 浙江CA互认 free?

浙江CA互认 is free to download, with no in-app purchases.

### Do SII DPU or 浙江CA互认 have ads?

Neither SII DPU nor 浙江CA互认 shows ads.

### Which is updated more often, SII DPU or 浙江CA互认?

SII DPU ships an update every 10 months, and 浙江CA互认 every 7 months. Most recently, SII DPU was updated on December 22, 2025 and 浙江CA互认 on September 9, 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.*