# Compass GPS Altimeter vs Altimeter

The clearest difference is rating: Altimeter at 5.0 against Compass GPS Altimeter's 4.2. Altimeter also leads on in-app purchases (none vs 5). Compass GPS Altimeter's advantage is update cadence (every 9 days vs every 6 weeks) and ratings volume (6 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Compass GPS Altimeter sells 5 in-app purchases, starting at $12.99 per 7 days. Altimeter asks for nothing beyond the download.

Altimeter holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Compass GPS Altimeter has 6 ratings behind it against 1, so its average is the more settled of the two.

Compass GPS Altimeter ships an update every 9 days, Altimeter every 6 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Compass GPS Altimeter | Altimeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (6 ratings)](https://appshunter.io/ios/app/compass-gps-altimeter/id6745474561/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/altimeter-gps-elevation-meter/id6749342397/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 74 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [成都关键元素科技有限公司](https://appshunter.io/developer/6779301920) | [广州盈锋智能软件技术有限公司](https://appshunter.io/developer/1695053577) |

## What reviewers say

### Compass GPS Altimeter

[App page](https://appshunter.io/ios/app/compass-gps-altimeter/id6745474561)

This app provides precise outdoor navigation with an offline GPS engine, a smart compass, and detailed weather information. It offers features like altitude tracking, terrain risk alerts, and the ability to watermark photos with geographic data. Ideal for adventurers and professionals needing reliable location and environmental data in remote areas.

**Highlights:** Offline GPS navigation, Precision compass with magnetic monitoring, Multi-source altimeter and barometer, Comprehensive weather station, Geo-data watermarking on photos, GPS track recording and analysis, Wilderness survival system with SOS

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CompassPro | $12.99 | per 7 days |
| CompassPro | $19.99 | per month |
| CompassPro | $24.99 | per 3 months |
| CompassPro | $29.99 | per year |
| CompassPro | $49.99 | one-time |


### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-gps-elevation-meter/id6749342397)

This app provides accurate real-time altitude, GPS, and atmospheric pressure data. It's designed for outdoor enthusiasts, hikers, and travelers, offering a simple interface to track location and assess weather conditions.

**Highlights:** Real-time altitude measurement, GPS positioning, Barometric pressure sensor integration, Latitude and longitude display, User-friendly interface, Location tracking, Weather judgment assistance

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

**In-app purchases:** none


## Frequently asked questions

### Is Compass GPS Altimeter free?

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

### Is Altimeter free?

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

### Which has better reviews, Compass GPS Altimeter or Altimeter?

Altimeter is rated higher. Compass GPS Altimeter averages 4.2 out of 5 from 6 ratings, while Altimeter averages 5.0 from 1 ratings.

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

Neither Compass GPS Altimeter nor Altimeter shows ads.

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

Compass GPS Altimeter ships an update every 9 days, and Altimeter every 6 weeks. Most recently, Compass GPS Altimeter was updated on October 25, 2026 and Altimeter on October 24, 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.*