# 海拔 Pro vs 兆山销售端

The clearest difference is in-app purchases: 兆山销售端 at none against 海拔 Pro's 3. 兆山销售端 also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). 海拔 Pro's advantage is update cadence (monthly vs every 23 months). On price and device support there is nothing between them.

Both are free to download. 海拔 Pro sells 3 in-app purchases, starting at $2.99 per month. 兆山销售端 asks for nothing beyond the download.

海拔 Pro ships an update monthly, 兆山销售端 every 23 months. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 海拔 Pro | 兆山销售端 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pro/id1603666667/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 23 months |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 28 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [上海氢木科技有限公司](https://appshunter.io/developer/1546421993) | [杭州云天软件股份有限公司](https://appshunter.io/developer/1051304783) |

## What reviewers say

### 海拔 Pro

[App page](https://appshunter.io/ios/app/pro/id1603666667)

This utility app provides real-time altitude and compass readings, combining GPS and barometer data. It allows users to record and track their exploration data, including altitude, coordinates, and ascent speed, with historical trend charts for review.

**Highlights:** Real-time altitude display, Smart compass with 72-degree scale, Record exploration data (altitude, coordinates, pressure), Historical trend charts, Meters and feet unit switching

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 海拔Pro 连续包月 | $2.99 | per month |
| 海拔Pro连续包年 | $59.99 | per year |
| 永久会员 | $24.99 | one-time |


### 兆山销售端

[App page](https://appshunter.io/ios/app/id1633191900)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 海拔 Pro free?

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

### Is 兆山销售端 free?

兆山销售端 is free to download, with no in-app purchases.

### Do 海拔 Pro or 兆山销售端 have ads?

海拔 Pro shows ads; 兆山销售端 does not.

### Which is updated more often, 海拔 Pro or 兆山销售端?

海拔 Pro ships an update monthly, and 兆山销售端 every 23 months. Most recently, 海拔 Pro was updated on October 20, 2026 and 兆山销售端 on October 25, 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.*