# GPS海拔测量仪 vs 登临

The clearest difference is in-app purchases: 登临 at none against GPS海拔测量仪's 1. 登临 also leads on ads (none vs shown) and update cadence (daily vs every 3 months). GPS海拔测量仪's advantage is iOS requirement (12.0 vs 18.0). On price 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. 登临 asks for nothing beyond the download.

GPS海拔测量仪 ships an update every 3 months, 登临 daily. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GPS海拔测量仪 | 登临 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (83 ratings)](https://appshunter.io/ios/app/gps/id1598479189/reviews)** | — |
| Number of ratings | **83** | — |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 66 MB | 20 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [晨铭 李](https://appshunter.io/developer/1468077452) | [m墨泉生物](https://appshunter.io/developer/1882918847) |

## 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 |


### 登临

[App page](https://appshunter.io/ios/app/id6786349211)

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

**In-app purchases:** none


## 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 登临 free?

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

### Do GPS海拔测量仪 or 登临 have ads?

GPS海拔测量仪 shows ads; 登临 does not.

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

GPS海拔测量仪 ships an update every 3 months, and 登临 daily. Most recently, GPS海拔测量仪 was updated on November 7, 2026 and 登临 on October 31, 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.*