# GPS Altitude Compass vs GmmcoShield

The clearest difference is in-app purchases: GmmcoShield at none against GPS Altitude Compass's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. GPS Altitude Compass sells 1 in-app purchase, starting at $14.99 per year. GmmcoShield asks for nothing beyond the download.

GPS Altitude Compass ships an update every 6 weeks, GmmcoShield every 2 months. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | GPS Altitude Compass | GmmcoShield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 78 MB | 39 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Cx Interactive Technology Co., Ltd.](https://appshunter.io/developer/1807951749) | [Gmmco](https://appshunter.io/developer/1580235773) |

## What reviewers say

### GPS Altitude Compass

[App page](https://appshunter.io/ios/app/gps-altitude-compass/id6744523223)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Membership | $14.99 | per year |


### GmmcoShield

[App page](https://appshunter.io/ios/app/gmmcoshield/id6760607831)

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

**In-app purchases:** none


## Frequently asked questions

### Is GPS Altitude Compass free?

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

### Is GmmcoShield free?

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

### Do GPS Altitude Compass or GmmcoShield have ads?

Neither GPS Altitude Compass nor GmmcoShield shows ads.

### Which is updated more often, GPS Altitude Compass or GmmcoShield?

GPS Altitude Compass ships an update every 6 weeks, and GmmcoShield every 2 months. Most recently, GPS Altitude Compass was updated on October 13, 2026 and GmmcoShield on October 18, 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.*