# 商标转让查询平台 vs 海豚服务

商标转让查询平台 and 海豚服务 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.

商标转让查询平台 ships an update every 5 weeks, 海豚服务 every 3 weeks. The most recent releases landed on October 27, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 商标转让查询平台 | 海豚服务 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 24 MB | 25 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shanghai Zhijia Intellectual Property Service Co., Ltd](https://appshunter.io/developer/1610511405) | [慧淋 梁](https://appshunter.io/developer/6785336178) |

## What reviewers say

### 商标转让查询平台

[App page](https://appshunter.io/ios/app/id1610511403)

**Features:** macOS Compatibility

**In-app purchases:** none


### 海豚服务

[App page](https://appshunter.io/ios/app/spa/id6465316228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 商标转让查询平台 free?

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

### Is 海豚服务 free?

海豚服务 is free to download, with no in-app purchases.

### Do 商标转让查询平台 or 海豚服务 have ads?

Neither 商标转让查询平台 nor 海豚服务 shows ads.

### Which is updated more often, 商标转让查询平台 or 海豚服务?

商标转让查询平台 ships an update every 5 weeks, and 海豚服务 every 3 weeks. Most recently, 商标转让查询平台 was updated on October 27, 2026 and 海豚服务 on September 9, 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.*