# Anniversary vs Countdown Calendar

The clearest difference is update cadence: Countdown Calendar at every 6 days against Anniversary's every 3 weeks. Countdown Calendar also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Anniversary sells 3 in-app purchases, starting at $0.99 per month and Countdown Calendar sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Anniversary ships an update every 3 weeks, Countdown Calendar every 6 days. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Anniversary | Countdown Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 3 MB | 23 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [颖 杨](https://appshunter.io/developer/1872549512) | [Serhii Surzhykov](https://appshunter.io/developer/1883337368) |

## What reviewers say

### Anniversary

[App page](https://appshunter.io/ios/app/anniversary-countdown/id6760209832)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $0.99 | per month |
| Yearly Pro (Best Value) | $3.99 | per year |
| Lifetime Pro | $6.99 | one-time |


### Countdown Calendar

[App page](https://appshunter.io/ios/app/countdown-calendar-timefeel/id6760222007)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $9.99 | one-time |


## Frequently asked questions

### Is Anniversary free?

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

### Is Countdown Calendar free?

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

### Do Anniversary or Countdown Calendar have ads?

Neither Anniversary nor Countdown Calendar shows ads.

### Which is updated more often, Anniversary or Countdown Calendar?

Anniversary ships an update every 3 weeks, and Countdown Calendar every 6 days. Most recently, Anniversary was updated on October 5, 2026 and Countdown Calendar on October 9, 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.*