# 应急中心 vs PV

应急中心 and PV are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

应急中心 ships an update every 3 months, PV every 2 months. The most recent releases landed on October 30, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 应急中心 | PV |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 14 MB | 33 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Inspur Genersoft Co., Ltd.](https://appshunter.io/developer/911718368) | [Trina Solar Co., Ltd.](https://appshunter.io/developer/1124386872) |

## What reviewers say

### 应急中心

[App page](https://appshunter.io/ios/app/id1660848687)

**Features:** Vision Pro support

**In-app purchases:** none


### PV

[App page](https://appshunter.io/ios/app/pv-scan/id6443591992)

**In-app purchases:** none


## Frequently asked questions

### Is 应急中心 free?

应急中心 is free to download, with no in-app purchases.

### Is PV free?

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

### Do 应急中心 or PV have ads?

Neither 应急中心 nor PV shows ads.

### Which is updated more often, 应急中心 or PV?

应急中心 ships an update every 3 months, and PV every 2 months. Most recently, 应急中心 was updated on October 30, 2026 and PV on November 3, 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.*