# 牛听听售前客服 vs ChargeDevops

The clearest difference is iOS requirement: 牛听听售前客服 at 9.0 against ChargeDevops's 15.6. 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.

## The numbers

| Metric | 牛听听售前客服 | ChargeDevops |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 months |
| Size | 44 MB | 4 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市本牛科技有限责任公司](https://appshunter.io/developer/1068680476) | [易事特集团股份有限公司](https://appshunter.io/developer/1036040326) |

## What reviewers say

### 牛听听售前客服

[App page](https://appshunter.io/ios/app/id1459829212)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChargeDevops

[App page](https://appshunter.io/ios/app/chargedevops/id1664993653)

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

**In-app purchases:** none


## Frequently asked questions

### Is 牛听听售前客服 free?

牛听听售前客服 is free to download, with no in-app purchases.

### Is ChargeDevops free?

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

### Do 牛听听售前客服 or ChargeDevops have ads?

Neither 牛听听售前客服 nor ChargeDevops shows ads.

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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.*