# 指南针 vs RTAltitude

The clearest difference is ads: 指南针 at none against RTAltitude's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 指南针 sells 1 one-off in-app purchase and RTAltitude sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 指南针 | RTAltitude |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (45 ratings)](https://appshunter.io/ios/app/gps/id6446302179/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 4 MB | 13 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [智平 刘](https://appshunter.io/developer/1125861933) | [思慧 余](https://appshunter.io/developer/1494859873) |

## What reviewers say

### 指南针

[App page](https://appshunter.io/ios/app/gps/id6446302179)

This app provides real-time environmental data including altitude, pressure, and GPS coordinates. It offers customizable display modes and supports both GPS and phone altimeter data sources. Designed for simplicity and efficiency, it ensures a clean, ad-free user experience.

**Highlights:** Altitude, pressure, and GPS data display, Switchable GPS or phone altimeter sources, Dark and light mode support, UI customization, Ad-free experience, Minimal resource usage

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 指南针PLUS 永久买断会员 | $1.99 | one-time |


### RTAltitude

[App page](https://appshunter.io/ios/app/rtaltitude-offline-gps/id6538727287)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Pro | $0.99 | one-time |


## Frequently asked questions

### Is 指南针 free?

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

### Is RTAltitude free?

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

### Do 指南针 or RTAltitude have ads?

RTAltitude shows ads; 指南针 does not.

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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.*