# 长安HUD vs Compass GPS

The clearest difference is in-app purchases: 长安HUD at none against Compass GPS's 5. 长安HUD also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Compass GPS sells 5 in-app purchases, starting at $0.99 per 7 days. 长安HUD asks for nothing beyond the download.

长安HUD ships an update every 3 weeks, Compass GPS every 10 days. The most recent releases landed on October 6, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 长安HUD | Compass GPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/compass-gps-altimeterspeed/id6754271113/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 113 MB | 14 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chongqing Pengri Science and Technology Development Co,Ltd.](https://appshunter.io/developer/1302227747) | [启鹏 田](https://appshunter.io/developer/1845107614) |

## What reviewers say

### 长安HUD

[App page](https://appshunter.io/ios/app/hud-app/id1403226612)

**Features:** macOS Compatibility

**In-app purchases:** none


### Compass GPS

[App page](https://appshunter.io/ios/app/compass-gps-altimeterspeed/id6754271113)

This navigation app provides detailed location data, including direction, weather, and altitude. It also offers real-time GPS speed measurement and a bubble level for practical geographical understanding.

**Highlights:** Professional compass and positioning, Real-time GPS data display, GPS speed measurement, Bubble level, Altitude and weather information

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $0.99 | per 7 days |
| Monthly Pro | $1.99 | per month |
| Quarterly Pro | $3.99 | per 3 months |
| Annual Pro | $9.99 | per year |
| Compass Lifetime Pro | $12.99 | one-time |


## Frequently asked questions

### Is 长安HUD free?

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

### Is Compass GPS free?

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

### Do 长安HUD or Compass GPS have ads?

Compass GPS shows ads; 长安HUD does not.

### Which is updated more often, 长安HUD or Compass GPS?

长安HUD ships an update every 3 weeks, and Compass GPS every 10 days. Most recently, 长安HUD was updated on October 6, 2026 and Compass GPS on October 26, 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.*