# Anniversary Countdown+ vs シンプルシフトアラーム

The clearest difference is in-app purchases: シンプルシフトアラーム at none against Anniversary Countdown+'s 3. シンプルシフトアラーム also leads on update cadence (daily vs every 10 days). Anniversary Countdown+'s advantage is iOS requirement (17.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Anniversary Countdown+ sells 3 in-app purchases, starting at $0.99 per month. シンプルシフトアラーム asks for nothing beyond the download.

Anniversary Countdown+ ships an update every 10 days, シンプルシフトアラーム daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Anniversary Countdown+ | シンプルシフトアラーム |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | **Daily** |
| Size | 25 MB | 38 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tadashi atoji](https://appshunter.io/developer/431510057) | [keishi yokoi](https://appshunter.io/developer/1861661371) |

## What reviewers say

### Anniversary Countdown+

[App page](https://appshunter.io/ios/app/anniversary-countdown-plus/id6760973006)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version (monthly) | $0.99 | per month |
| Pro version(Year) | $9.99 | per year |
| Pro version (one-time purchase) | $17.99 | one-time |


### シンプルシフトアラーム

[App page](https://appshunter.io/ios/app/id6761641505)

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

**In-app purchases:** none


## Frequently asked questions

### Is Anniversary Countdown+ free?

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

### Is シンプルシフトアラーム free?

シンプルシフトアラーム is free to download, with no in-app purchases.

### Do Anniversary Countdown+ or シンプルシフトアラーム have ads?

Both Anniversary Countdown+ and シンプルシフトアラーム show ads.

### Which is updated more often, Anniversary Countdown+ or シンプルシフトアラーム?

Anniversary Countdown+ ships an update every 10 days, and シンプルシフトアラーム daily. Most recently, Anniversary Countdown+ was updated on October 24, 2026 and シンプルシフトアラーム on October 25, 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.*