# 海拔表 vs Compass666

The clearest difference is update cadence: Compass666 at weekly against 海拔表's every 7 months. 海拔表's advantage is monetization model (ad-supported vs freemium) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

海拔表 ships an update every 7 months, Compass666 weekly. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 海拔表 | Compass666 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id6740981208/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | **Ad-supported** | Freemium |
| Size | 70 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京才牛图科技有限公司](https://appshunter.io/developer/1556885180) | [Qiangcent co., ltd.](https://appshunter.io/developer/1885425473) |

## What reviewers say

### 海拔表

[App page](https://appshunter.io/ios/app/id6740981208)

This app provides real-time outdoor navigation data, including altitude, direction, latitude, longitude, and atmospheric pressure. It's designed for outdoor enthusiasts to accurately track their location and environmental conditions.

**Highlights:** Real-time altitude measurement, Accurate direction compass, Latitude and longitude display, Atmospheric pressure readings, Outdoor activity tracking

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

**In-app purchases:** none


### Compass666

[App page](https://appshunter.io/ios/app/compass666-compassgps/id6773754239)

This app provides precise directional guidance and environmental data. It offers a detailed compass, GPS coordinates, altitude, and a level tool for various outdoor and everyday needs. Enjoy a visually appealing interface with practical measurement capabilities.

**Highlights:** Precision compass with true and magnetic north, GPS data including coordinates and altitude, Address display based on current location, Level tool for measuring tilt, Barometer for air pressure and altitude changes, Elegant dark visual design

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

**In-app purchases:** none


## Frequently asked questions

### Is 海拔表 free?

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

### Is Compass666 free?

Compass666 is free to download, with no in-app purchases.

### Do 海拔表 or Compass666 have ads?

Both 海拔表 and Compass666 show ads.

### Which is updated more often, 海拔表 or Compass666?

海拔表 ships an update every 7 months, and Compass666 weekly. Most recently, 海拔表 was updated on October 5, 2026 and Compass666 on October 9, 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.*