# 指南针 vs 海拔测量仪

The clearest difference is device support: 海拔测量仪 at 2 against 指南针's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 指南针 sells 1 in-app purchase, starting at $14.99 per year and 海拔测量仪 sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 指南针 | 海拔测量仪 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 89.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Subscription |
| Size | 14 MB | 33 MB |
| Requires iOS | **14.3** | 15.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [小娟 韩](https://appshunter.io/developer/1650353060) | [艳 杜](https://appshunter.io/developer/1671675512) |

## What reviewers say

### 指南针

[App page](https://appshunter.io/ios/app/gps/id6497792569)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 指南针年度会员 | $14.99 | per year |


### 海拔测量仪

[App page](https://appshunter.io/ios/app/id6499491694)

This app provides real-time outdoor data including altitude, weather, and location for activities like hiking and camping. It features a compass, route tracking, and a speed detector. Users can also take photos with custom data watermarks to share with friends.

**Highlights:** Real-time altitude and weather data, Compass for accurate direction, Route and altitude change recording, Speed detection for running/cycling, Photo watermarking with data, GPS location, pressure, UV index

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 专业版包周 | $4.99 | per 7 days |
| 专业版包月 | $9.99 | per month |
| 专业版包年 | $29.99 | per year |


## Frequently asked questions

### Is 指南针 free?

指南针 is free to download, with in-app purchases available.

### Is 海拔测量仪 free?

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

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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.*