# Countdown & Interval Timer vs 海拔测量仪

The clearest difference is in-app purchases: 海拔测量仪 at none against Countdown & Interval Timer's 4. 海拔测量仪 also leads on iOS requirement (17.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Countdown & Interval Timer sells 4 in-app purchases, starting at $2.99 per month. 海拔测量仪 asks for nothing beyond the download.

## The numbers

| Metric | Countdown & Interval Timer | 海拔测量仪 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 94 MB | 3 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tingogo Inc](https://appshunter.io/developer/1689008236) | [雨雪 雷](https://appshunter.io/developer/1896522689) |

## What reviewers say

### Countdown & Interval Timer

[App page](https://appshunter.io/ios/app/countdown-and-interval-timer/id6759101882)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $9.99 | per year |
| Lifetime Premium | $19.99 | one-time |
| Lifetime Premium | $39.99 | one-time |


### 海拔测量仪

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Countdown & Interval Timer free?

Countdown & Interval Timer is free to download, with in-app purchases available.

### Is 海拔测量仪 free?

海拔测量仪 is free to download, with no in-app purchases.

### Do Countdown & Interval Timer or 海拔测量仪 have ads?

Neither Countdown & Interval Timer nor 海拔测量仪 shows ads.

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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.*