# Dpurat Technology vs CIMOS鸿书

The clearest difference is update cadence: CIMOS鸿书 at every 4 weeks against Dpurat Technology's every 9 months. Dpurat Technology's advantage is iOS requirement (11.0 vs 13.0). 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.

Dpurat Technology ships an update every 9 months, CIMOS鸿书 every 4 weeks. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Dpurat Technology | CIMOS鸿书 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 weeks** |
| Size | 175 MB | 53 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Puruitai Environmental Equipment Co., Ltd.](https://appshunter.io/developer/1569289122) | [Qingdao City Brain Investment Development Co., Ltd](https://appshunter.io/developer/1531980409) |

## What reviewers say

### Dpurat Technology

[App page](https://appshunter.io/ios/app/dpurat-technology/id1572422553)

**Features:** macOS Compatibility

**In-app purchases:** none


### CIMOS鸿书

[App page](https://appshunter.io/ios/app/cimos/id6466782104)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dpurat Technology free?

Dpurat Technology is free to download, with no in-app purchases.

### Is CIMOS鸿书 free?

CIMOS鸿书 is free to download, with no in-app purchases.

### Do Dpurat Technology or CIMOS鸿书 have ads?

Neither Dpurat Technology nor CIMOS鸿书 shows ads.

### Which is updated more often, Dpurat Technology or CIMOS鸿书?

Dpurat Technology ships an update every 9 months, and CIMOS鸿书 every 4 weeks. Most recently, Dpurat Technology was updated on October 11, 2026 and CIMOS鸿书 on October 18, 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.*