# 指南针 vs 知历实验室

The clearest difference is in-app purchases: 知历实验室 at none against 指南针's 2. 指南针's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 指南针 sells 2 in-app purchases, starting at $15.49 per year. 知历实验室 asks for nothing beyond the download.

## The numbers

| Metric | 指南针 | 知历实验室 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (13 ratings)](https://appshunter.io/ios/app/gps/id1614813115/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 31.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chongqing Xinzhi Space Technology Co., Ltd.](https://appshunter.io/developer/1514572019) | [山杰 韩](https://appshunter.io/developer/1884328098) |

## What reviewers say

### 指南针

[App page](https://appshunter.io/ios/app/gps/id1614813115)

This app provides professional compass functionality, displaying real-time directional data, GPS coordinates, altitude, and atmospheric pressure. It includes tools like a coordinate camera and GPS speed measurement for outdoor enthusiasts.

**Highlights:** Real-time direction finding, GPS coordinates and altitude display, Atmospheric pressure and wind direction, GPS speed measurement, Coordinate camera, Map mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 指南针定位专业版试用 | $15.49 | per year |
| 指南针定位专业版 | $27.99 | one-time |


### 知历实验室

[App page](https://appshunter.io/ios/app/id6768883256)

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

**In-app purchases:** none


## Frequently asked questions

### Is 指南针 free?

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

### Is 知历实验室 free?

知历实验室 is free to download, with no in-app purchases.

### Do 指南针 or 知历实验室 have ads?

Neither 指南针 nor 知历实验室 shows ads.

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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.*