# PP海拔 vs Compass

The clearest difference is update cadence: PP海拔 at daily against Compass's every 3 days. Compass's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PP海拔 sells 1 one-off in-app purchase and Compass sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PP海拔 ships an update daily, Compass every 3 days. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | PP海拔 | Compass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (11 ratings)](https://appshunter.io/ios/app/compass-elevation-and-altimeter/id6743296198/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 48 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [鸽 李](https://appshunter.io/developer/1754752242) | [天就 黄](https://appshunter.io/developer/1780751083) |

## What reviewers say

### PP海拔

[App page](https://appshunter.io/ios/app/pp-gps/id6740324251)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PP海拔会员版 | $0.99 | one-time |


### Compass

[App page](https://appshunter.io/ios/app/compass-elevation-and-altimeter/id6743296198)

This app provides precise navigation tools, including real-time location, elevation, and barometric pressure readings. It allows users to log their journeys, save travel paths, and embed location data into photos for enhanced exploration.

**Highlights:** Real-time azimuth and coordinates, Instant elevation readings, Barometric pressure tracking, Auto-record elevation changes, Save and replay travel paths, Embed coordinates into photos

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $6.99 | per month |
| Yearly | $14.99 | per year |
| Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is PP海拔 free?

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

### Is Compass free?

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

### Do PP海拔 or Compass have ads?

Neither PP海拔 nor Compass shows ads.

### Which is updated more often, PP海拔 or Compass?

PP海拔 ships an update daily, and Compass every 3 days. Most recently, PP海拔 was updated on October 3, 2026 and Compass on October 13, 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.*