# 商标转让查询服务 vs 牛牛电销外呼

The clearest difference is in-app purchases: 商标转让查询服务 at none against 牛牛电销外呼's 10. 牛牛电销外呼's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 牛牛电销外呼 sells 10 one-off in-app purchases. 商标转让查询服务 asks for nothing beyond the download.

商标转让查询服务 ships an update every 3 weeks, 牛牛电销外呼 every 2 days. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 商标转让查询服务 | 牛牛电销外呼 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 24 MB | 28 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [上海标闪闪知识产权服务有限公司](https://appshunter.io/developer/1686698293) | [Guangxi Jiaoguoyou Information Technology Co., Ltd](https://appshunter.io/developer/1710875484) |

## What reviewers say

### 商标转让查询服务

[App page](https://appshunter.io/ios/app/id6448860193)

**Features:** macOS Compatibility

**In-app purchases:** none


### 牛牛电销外呼

[App page](https://appshunter.io/ios/app/id6473001283)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000条短信套餐 | $19.99 | one-time |
| 通话1500分钟套餐 | $22.99 | one-time |
| 通话2000分钟套餐 | $29.99 | one-time |
| 包月通话时长套餐 | $34.99 | one-time |
| 数据一年套餐 | $99.99 | one-time |
| 5000条短信套餐 | $99.99 | one-time |
| 10000条短信套餐 | $149.99 | one-time |
| 数据两年套餐 | $179.99 | one-time |
| 数据三年套餐 | $249.99 | one-time |
| 50000条短信套餐 | $699.99 | one-time |


## Frequently asked questions

### Is 商标转让查询服务 free?

商标转让查询服务 is free to download, with no in-app purchases.

### Is 牛牛电销外呼 free?

牛牛电销外呼 is free to download, with in-app purchases available.

### Do 商标转让查询服务 or 牛牛电销外呼 have ads?

Neither 商标转让查询服务 nor 牛牛电销外呼 shows ads.

### Which is updated more often, 商标转让查询服务 or 牛牛电销外呼?

商标转让查询服务 ships an update every 3 weeks, and 牛牛电销外呼 every 2 days. Most recently, 商标转让查询服务 was updated on September 15, 2026 and 牛牛电销外呼 on September 20, 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.*