# OnTime Clock vs 海拔测量仪

The clearest difference is iOS requirement: 海拔测量仪 at 17.6 against OnTime Clock's 26.0. On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | OnTime Clock | 海拔测量仪 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 18 MB | 3 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [文巧 刘](https://appshunter.io/developer/1870071617) | [雨雪 雷](https://appshunter.io/developer/1896522689) |

## What reviewers say

### OnTime Clock

[App page](https://appshunter.io/ios/app/ontime-clock/id6758231595)

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

**In-app purchases:** none


### 海拔测量仪

[App page](https://appshunter.io/ios/app/and-and/id6776614372)

**In-app purchases:** none


## Frequently asked questions

### Is OnTime Clock free?

OnTime Clock 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 no in-app purchases.

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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.*