# 精准卫星地图 vs Compass666

The clearest difference is ads: 精准卫星地图 at none against Compass666's shown. 精准卫星地图 also leads on monetization model (free vs freemium) and iOS requirement (13.7 vs 17.0). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 精准卫星地图 | Compass666 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | **Free** | Freemium |
| Size | 13 MB | 3 MB |
| Requires iOS | **13.7** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [寅萍 丁](https://appshunter.io/developer/1825263052) | [Qiangcent co., ltd.](https://appshunter.io/developer/1885425473) |

## What reviewers say

### 精准卫星地图

[App page](https://appshunter.io/ios/app/id6748876429)

This navigation tool provides precise direction, location, and environmental data without an internet connection. It features customizable watch faces and offers insights into altitude, air pressure, and oxygen levels, making it ideal for outdoor adventures.

**Highlights:** Offline compass functionality, Real-time location and navigation, Altitude, speed, and coordinates, Magnetic field and air pressure monitoring, Oxygen concentration analysis, Sunrise/sunset prediction, Device tilt angle detection

**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 精准卫星地图 free?

精准卫星地图 is free to download, with no in-app purchases.

### Is Compass666 free?

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

### Do 精准卫星地图 or Compass666 have ads?

Compass666 shows ads; 精准卫星地图 does not.

### Which is updated more often, 精准卫星地图 or Compass666?

精准卫星地图 ships an update weekly, and Compass666 weekly. Most recently, 精准卫星地图 was updated on October 7, 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.*