# Ultra Countdown vs CountdownZen

The clearest difference is in-app purchases: Ultra Countdown at none against CountdownZen's 2. CountdownZen's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. CountdownZen sells 2 in-app purchases, starting at $0.29 per 7 days. Ultra Countdown asks for nothing beyond the download.

## The numbers

| Metric | Ultra Countdown | CountdownZen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 4 MB | 48 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Syntax & Sons LLC](https://appshunter.io/developer/1834098145) | [Mark Stelmachenko](https://appshunter.io/developer/1889340384) |

## What reviewers say

### Ultra Countdown

[App page](https://appshunter.io/ios/app/ultra-countdown/id6760017010)

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

**In-app purchases:** none


### CountdownZen

[App page](https://appshunter.io/ios/app/countdownzen-event-countdown/id6761395458)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CountdownZen Pro – Weekly | $0.29 | per 7 days |
| CountdownZen Pro - Annual | $1.99 | per year |


## Frequently asked questions

### Is Ultra Countdown free?

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

### Is CountdownZen free?

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

### Do Ultra Countdown or CountdownZen have ads?

Neither Ultra Countdown nor CountdownZen 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.*