# Site Compass vs Altimeter & GPS

The clearest difference is in-app purchases: Site Compass at none against Altimeter & GPS's 2. Site Compass also leads on ads (none vs shown) and update cadence (fortnightly vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Altimeter & GPS sells 2 in-app purchases, starting at $4.99 per month. Site Compass asks for nothing beyond the download.

Site Compass ships an update fortnightly, Altimeter & GPS every 10 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Site Compass | Altimeter & GPS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 10 months |
| Size | 30 MB | 24 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Site Compass Pty Ltd](https://appshunter.io/developer/1699524942) | [kota tada](https://appshunter.io/developer/1658942612) |

## What reviewers say

### Site Compass

[App page](https://appshunter.io/ios/app/site-compass/id6453692913)

**In-app purchases:** none


### Altimeter & GPS

[App page](https://appshunter.io/ios/app/altimeter-and-gps-compass/id6741721711)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free for 1 month | $4.99 | per month |
| Ad-free for 1 year | $49.99 | per year |


## Frequently asked questions

### Is Site Compass free?

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

### Is Altimeter & GPS free?

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

### Do Site Compass or Altimeter & GPS have ads?

Altimeter & GPS shows ads; Site Compass does not.

### Which is updated more often, Site Compass or Altimeter & GPS?

Site Compass ships an update fortnightly, and Altimeter & GPS every 10 months. Most recently, Site Compass was updated on November 7, 2026 and Altimeter & GPS on October 30, 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.*