# 公估在线 vs 数字空压站

The clearest difference is iOS requirement: 数字空压站 at 11.0 against 公估在线's 15.0. 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.

公估在线 ships an update every 3 months, 数字空压站 every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 公估在线 | 数字空压站 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 25 MB | 76 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Datong Insurance Surveyors & Loss Adjusters Co., Ltd.](https://appshunter.io/developer/1502210952) | [苏州汇川技术有限公司](https://appshunter.io/developer/1441943965) |

## What reviewers say

### 公估在线

[App page](https://appshunter.io/ios/app/id1211582690)

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

**In-app purchases:** none


### 数字空压站

[App page](https://appshunter.io/ios/app/id6447392098)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 公估在线 free?

公估在线 is free to download, with no in-app purchases.

### Is 数字空压站 free?

数字空压站 is free to download, with no in-app purchases.

### Do 公估在线 or 数字空压站 have ads?

Neither 公估在线 nor 数字空压站 shows ads.

### Which is updated more often, 公估在线 or 数字空压站?

公估在线 ships an update every 3 months, and 数字空压站 every 2 months. Most recently, 公估在线 was updated on November 2, 2026 and 数字空压站 on October 30, 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.*