# 海拔仪 vs KeyBox

The clearest difference is ads: KeyBox at none against 海拔仪's shown. KeyBox also leads on update cadence (every 10 days vs monthly). 海拔仪's advantage is iOS requirement (15 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

海拔仪 ships an update monthly, KeyBox every 10 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 海拔仪 | KeyBox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 10 days** |
| Size | 16 MB | 6 MB |
| Requires iOS | **15** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [媛媛 钱](https://appshunter.io/developer/1869024065) | [亮军 涂](https://appshunter.io/developer/1832996559) |

## What reviewers say

### 海拔仪

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

**In-app purchases:** none


### KeyBox

[App page](https://appshunter.io/ios/app/keybox-vault/id6785874577)

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

**In-app purchases:** none


## Frequently asked questions

### Is 海拔仪 free?

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

### Is KeyBox free?

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

### Do 海拔仪 or KeyBox have ads?

海拔仪 shows ads; KeyBox does not.

### Which is updated more often, 海拔仪 or KeyBox?

海拔仪 ships an update monthly, and KeyBox every 10 days. Most recently, 海拔仪 was updated on October 15, 2026 and KeyBox on October 8, 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.*