# 标准放大镜 vs 海拔测量仪

The clearest difference is in-app purchases: 标准放大镜 at none against 海拔测量仪's 3. 标准放大镜 also leads on iOS requirement (11.0 vs 15.0). 海拔测量仪's advantage is update cadence (every 9 days vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. 海拔测量仪 sells 3 in-app purchases, starting at $4.99 per 7 days. 标准放大镜 asks for nothing beyond the download.

标准放大镜 ships an update every 5 months, 海拔测量仪 every 9 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 标准放大镜 | 海拔测量仪 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 89.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | — | Subscription |
| Size | 17 MB | 33 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Changsha Gengyun Network Technology Co., Ltd](https://appshunter.io/developer/1498713734) | [艳 杜](https://appshunter.io/developer/1671675512) |

## What reviewers say

### 标准放大镜

[App page](https://appshunter.io/ios/app/20/id1591568480)

**Features:** macOS Compatibility

**In-app purchases:** none


### 海拔测量仪

[App page](https://appshunter.io/ios/app/id6499491694)

This app provides real-time outdoor data including altitude, weather, and location for activities like hiking and camping. It features a compass, route tracking, and a speed detector. Users can also take photos with custom data watermarks to share with friends.

**Highlights:** Real-time altitude and weather data, Compass for accurate direction, Route and altitude change recording, Speed detection for running/cycling, Photo watermarking with data, GPS location, pressure, UV index

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 专业版包周 | $4.99 | per 7 days |
| 专业版包月 | $9.99 | per month |
| 专业版包年 | $29.99 | per year |


## Frequently asked questions

### Is 标准放大镜 free?

标准放大镜 is free to download, with no in-app purchases.

### Is 海拔测量仪 free?

海拔测量仪 is free to download, with in-app purchases available.

### Do 标准放大镜 or 海拔测量仪 have ads?

Neither 标准放大镜 nor 海拔测量仪 shows ads.

### Which is updated more often, 标准放大镜 or 海拔测量仪?

标准放大镜 ships an update every 5 months, and 海拔测量仪 every 9 days. Most recently, 标准放大镜 was updated on October 27, 2026 and 海拔测量仪 on October 30, 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.*