# GPS海拔测量仪 vs Compass GPS Altimeter

The clearest difference is rating: GPS海拔测量仪 at 4.8 against Compass GPS Altimeter's 4.2. GPS海拔测量仪 also leads on ratings volume (83 vs 6) and review sentiment (92% vs 79%). Compass GPS Altimeter's advantage is ads (none vs shown) and update cadence (every 9 days vs every 3 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. GPS海拔测量仪 sells 1 in-app purchase, starting at $2.99 per year and Compass GPS Altimeter sells 5 in-app purchases, starting at $12.99 per 7 days. Whichever you choose, the download price is not the number that matters.

GPS海拔测量仪 holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: GPS海拔测量仪 has 83 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 92% of GPS海拔测量仪's written reviews are positive against 79% of Compass GPS Altimeter's.

GPS海拔测量仪 ships an update every 3 months, Compass GPS Altimeter every 9 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | GPS海拔测量仪 | Compass GPS Altimeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (83 ratings)](https://appshunter.io/ios/app/gps/id1598479189/reviews)** | [4.2 (6 ratings)](https://appshunter.io/ios/app/compass-gps-altimeter/id6745474561/reviews) |
| Number of ratings | **83** | 6 |
| Positive reviews | **91.7% of reviews** | 78.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 66 MB | 33 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [晨铭 李](https://appshunter.io/developer/1468077452) | [成都关键元素科技有限公司](https://appshunter.io/developer/6779301920) |

## What reviewers say

### GPS海拔测量仪

[App page](https://appshunter.io/ios/app/gps/id1598479189)

This utility app provides real-time altitude, GPS coordinates, barometric pressure, and oxygen content. It offers accurate location data for outdoor activities and allows users to generate and share photos with location watermarks.

**Highlights:** Real-time altitude measurement, GPS coordinate tracking, Barometric pressure readings, Oxygen content monitoring, Location watermark photos, Outdoor activity data logging

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 年会员 | $2.99 | per year |


### 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 |


## Frequently asked questions

### Is GPS海拔测量仪 free?

GPS海拔测量仪 is free to download, with in-app purchases available.

### Is Compass GPS Altimeter free?

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

### Which has better reviews, GPS海拔测量仪 or Compass GPS Altimeter?

GPS海拔测量仪 is rated higher. GPS海拔测量仪 averages 4.8 out of 5 from 83 ratings, while Compass GPS Altimeter averages 4.2 from 6 ratings.

### Do GPS海拔测量仪 or Compass GPS Altimeter have ads?

GPS海拔测量仪 shows ads; Compass GPS Altimeter does not.

### Which is updated more often, GPS海拔测量仪 or Compass GPS Altimeter?

GPS海拔测量仪 ships an update every 3 months, and Compass GPS Altimeter every 9 days. Most recently, GPS海拔测量仪 was updated on October 27, 2026 and Compass GPS Altimeter on October 28, 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.*