# 黑鸟单车 vs GuoouMaster

The clearest difference is iOS requirement: GuoouMaster at 11.0 against 黑鸟单车's 13.0. On price, review sentiment, update cadence and ads there is nothing between them.

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

黑鸟单车 ships an update every 2 months, GuoouMaster every 3 months. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 黑鸟单车 | GuoouMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (130 ratings)](https://appshunter.io/ios/app/id714004498/reviews)** | — |
| Number of ratings | **130** | — |
| Positive reviews | **86.5% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 118 MB | 15 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Beijing Bamboo Networks Ltd](https://appshunter.io/developer/472977370) | [海军 欧阳](https://appshunter.io/developer/1284631051) |

## What reviewers say

### 黑鸟单车

[App page](https://appshunter.io/ios/app/id714004498)

This platform offers a comprehensive mobile cycling experience, integrating with health apps to record and analyze your rides. Discover routes, events, and connect with a vast community of cyclists and clubs nationwide.

**Highlights:** Record and analyze cycling data, Discover cycling routes and events, Connect with cyclists and clubs, Integrates with Health Kit, Find cycling partners and destinations, Manage cycling clubs and races

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

**In-app purchases:** none


### GuoouMaster

[App page](https://appshunter.io/ios/app/guooumaster/id1284631052)

This app measures coating thickness on steel and aluminum, allowing real-time data reading via Bluetooth, recording, and analysis. It helps evaluate vehicle originality and compliance with state regulations for used vehicle appraisal and new car transactions.

**Highlights:** Bluetooth data reading, Data recording and analysis, Vehicle coating inspection, Batch product testing, Used vehicle appraisal tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 黑鸟单车 free?

黑鸟单车 is free to download, with no in-app purchases.

### Is GuoouMaster free?

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

### Do 黑鸟单车 or GuoouMaster have ads?

Neither 黑鸟单车 nor GuoouMaster shows ads.

### Which is updated more often, 黑鸟单车 or GuoouMaster?

黑鸟单车 ships an update every 2 months, and GuoouMaster every 3 months. Most recently, 黑鸟单车 was updated on September 25, 2026 and GuoouMaster 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.*