# 海拔测试仪 vs Compass

The clearest difference is rating: 海拔测试仪 at 5.0 against Compass's 4.5. 海拔测试仪 also leads on in-app purchases (none vs 4) and ads (none vs shown). Compass's advantage is review sentiment (100% vs 90%). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Compass sells 4 in-app purchases, starting at $9.99 per 7 days. 海拔测试仪 asks for nothing beyond the download.

海拔测试仪 holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews complicate that: 90% of 海拔测试仪's written reviews are positive against 100% of Compass's, so the app with the better star average is not the one people write more warmly about.

海拔测试仪 ships an update weekly, Compass every 5 days. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 海拔测试仪 | Compass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6739829542/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/compassguide-precisely/id6756476417/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 27 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [观艳 谭](https://appshunter.io/developer/1745017384) | [变变 王](https://appshunter.io/developer/1801975852) |

## What reviewers say

### 海拔测试仪

[App page](https://appshunter.io/ios/app/id6739829542)

This app serves as a professional outdoor companion, offering real-time altitude measurement and a precise compass for navigation. It also features identification tools for plants and animals, along with GPS-based speed and location tracking.

**Highlights:** Real-time altitude measurement, Precise compass and GPS, Plant and animal identification, Location tracking, GPS speed measurement

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

**In-app purchases:** none


### Compass

[App page](https://appshunter.io/ios/app/compassguide-precisely/id6756476417)

This navigation app provides a precise digital compass, real-time weather, detailed coordinates, and interactive maps. It's designed for explorers and travelers needing essential location-based information.

**Highlights:** Accurate digital compass, Coordinates and location details, Live weather information, Current address and map view, Altitude and elevation tracker, Offline functionality

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| This is for you | $9.99 | per 7 days |
| This is for you | $25.99 | per 3 months |
| This is for you | $41.99 | per year |
| This is for you | $2.99 | one-time |


## Frequently asked questions

### Is 海拔测试仪 free?

海拔测试仪 is free to download, with no in-app purchases.

### Is Compass free?

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

### Which has better reviews, 海拔测试仪 or Compass?

海拔测试仪 is rated higher. 海拔测试仪 averages 5.0 out of 5 from 1 ratings, while Compass averages 4.5 from 2 ratings.

### Do 海拔测试仪 or Compass have ads?

Compass shows ads; 海拔测试仪 does not.

### Which is updated more often, 海拔测试仪 or Compass?

海拔测试仪 ships an update weekly, and Compass every 5 days. Most recently, 海拔测试仪 was updated on October 8, 2026 and Compass on October 14, 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.*