# 广州地铁助手 vs Compass Altitude

The clearest difference is price: Compass Altitude at Free against 广州地铁助手's $19.99. Compass Altitude also leads on ads (none vs shown). 广州地铁助手's advantage is in-app purchases (none vs 1) and update cadence (every 3 days vs every 8 days). On device support and iOS requirement there is nothing between them.

Compass Altitude is free to download; 广州地铁助手 costs $19.99 up front. Compass Altitude sells 1 in-app purchase, starting at $9.99 per year. 广州地铁助手 asks for nothing beyond the download.

广州地铁助手 ships an update every 3 days, Compass Altitude every 8 days. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 广州地铁助手 | Compass Altitude |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 8 days |
| Size | 35 MB | 6 MB |
| Requires iOS | 16.6 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [乐祥 胡](https://appshunter.io/developer/1572365721) | [连喜 罗](https://appshunter.io/developer/1450239627) |

## What reviewers say

### 广州地铁助手

[App page](https://appshunter.io/ios/app/id6736858136)

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

**In-app purchases:** none


### Compass Altitude

[App page](https://appshunter.io/ios/app/compass-altitude/id6738635300)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CompassAltitudePro | $9.99 | per year |


## Frequently asked questions

### Is 广州地铁助手 free?

广州地铁助手 costs $19.99, with no in-app purchases.

### Is Compass Altitude free?

Compass Altitude is free to download, with in-app purchases available.

### Do 广州地铁助手 or Compass Altitude have ads?

广州地铁助手 shows ads; Compass Altitude does not.

### Which is updated more often, 广州地铁助手 or Compass Altitude?

广州地铁助手 ships an update every 3 days, and Compass Altitude every 8 days. Most recently, 广州地铁助手 was updated on October 25, 2026 and Compass Altitude on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*