# DuckGPS vs Compass666

The clearest difference is price: Compass666 at Free against DuckGPS's $4.99. Compass666 also leads on update cadence (weekly vs every 3 months). DuckGPS's advantage is ads (none vs shown). On review sentiment, in-app purchases, device support and iOS requirement there is nothing between them.

Compass666 is free to download; DuckGPS costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DuckGPS ships an update every 3 months, Compass666 weekly. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | DuckGPS | Compass666 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/duckgps-gps-speed-tracker/id1478904971/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 27 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [欣明 封](https://appshunter.io/developer/1473431377) | [Qiangcent co., ltd.](https://appshunter.io/developer/1885425473) |

## What reviewers say

### DuckGPS

[App page](https://appshunter.io/ios/app/duckgps-gps-speed-tracker/id1478904971)

This navigation app features a customizable duck avatar that visually represents your speed with a spinning propeller. It offers 360° rotation and a night mode for comfortable viewing. Always prioritize safe driving and obey traffic laws.

**Highlights:** Customizable duck avatar, Realistic propeller speed indicator, 360° free rotation, Dedicated Night Mode, Continuous GPS usage for speed 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 DuckGPS free?

DuckGPS costs $4.99, with no in-app purchases.

### Is Compass666 free?

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

### Do DuckGPS or Compass666 have ads?

Compass666 shows ads; DuckGPS does not.

### Which is updated more often, DuckGPS or Compass666?

DuckGPS ships an update every 3 months, and Compass666 weekly. Most recently, DuckGPS was updated on October 21, 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.*