# 气压计 vs 海拔仪

The clearest difference is in-app purchases: 海拔仪 at none against 气压计's 4. 气压计's advantage is update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 气压计 sells 4 in-app purchases, starting at $0.99 per 7 days. 海拔仪 asks for nothing beyond the download.

气压计 ships an update every 2 weeks, 海拔仪 monthly. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 气压计 | 海拔仪 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id6737332402/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 16 MB |
| Requires iOS | 16.0 | **15** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [英男 王](https://appshunter.io/developer/1773342371) | [媛媛 钱](https://appshunter.io/developer/1869024065) |

## What reviewers say

### 气压计

[App page](https://appshunter.io/ios/app/id6737332402)

This app uses your phone's sensors to provide accurate real-time measurements of atmospheric pressure and altitude. It's useful for outdoor activities, weather prediction, and health monitoring.

**Highlights:** Real-time pressure data, High-accuracy altitude calculation, Automatic altitude updates, Manual altitude calibration, Weather prediction insights, Health monitoring support

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周订阅 | $0.99 | per 7 days |
| 月会员1 | $0.99 | per month |
| 3个月会员1 | $1.99 | per 3 months |
| 年会员1 | $3.99 | per year |


### 海拔仪

[App page](https://appshunter.io/ios/app/id6782098514)

**In-app purchases:** none


## Frequently asked questions

### Is 气压计 free?

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

### Is 海拔仪 free?

海拔仪 is free to download, with no in-app purchases.

### Do 气压计 or 海拔仪 have ads?

Both 气压计 and 海拔仪 show ads.

### Which is updated more often, 气压计 or 海拔仪?

气压计 ships an update every 2 weeks, and 海拔仪 monthly. Most recently, 气压计 was updated on October 11, 2026 and 海拔仪 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.*