# 倒数日历 vs Countdown

The clearest difference is ads: 倒数日历 at none against Countdown's shown. Countdown's advantage is update cadence (every 8 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

倒数日历 ships an update every 5 weeks, Countdown every 8 days. Both last shipped on October 16, 2026.

## The numbers

| Metric | 倒数日历 | Countdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/countdown-reminder-and-timer/id1659178143/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 55.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | — | Ad-supported |
| Size | 18 MB | 16 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yuanlai Infomation Technology Co., Ltd.](https://appshunter.io/developer/958193889) | [晓文 刘](https://appshunter.io/developer/1525471628) |

## What reviewers say

### 倒数日历

[App page](https://appshunter.io/ios/app/id1558613002)

**Features:** macOS Compatibility

**In-app purchases:** none


### Countdown

[App page](https://appshunter.io/ios/app/countdown-reminder-and-timer/id1659178143)

Never forget important dates again with this app. It helps you track upcoming events like birthdays and holidays, and also shows how many days have passed since a specific event. Customize reminders and categorize your countdowns for better organization.

**Highlights:** Positive countdowns for future events, Track days passed for past events, Customizable push reminders, Repeatable date settings, Date categorization, Today in History feature, Icon color customization

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

**In-app purchases:** none


## Frequently asked questions

### Is 倒数日历 free?

倒数日历 is free to download, with no in-app purchases.

### Is Countdown free?

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

### Do 倒数日历 or Countdown have ads?

Countdown shows ads; 倒数日历 does not.

### Which is updated more often, 倒数日历 or Countdown?

倒数日历 ships an update every 5 weeks, and Countdown every 8 days. Most recently, 倒数日历 was updated on October 16, 2026 and Countdown on October 16, 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.*