# カスタムアラーム vs Focus Timer シンプルなタイマー

The clearest difference is in-app purchases: Focus Timer シンプルなタイマー at none against カスタムアラーム's 1. Focus Timer シンプルなタイマー also leads on update cadence (every 3 days vs every 4 weeks). カスタムアラーム's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. カスタムアラーム sells 1 one-off in-app purchase. Focus Timer シンプルなタイマー asks for nothing beyond the download.

カスタムアラーム ships an update every 4 weeks, Focus Timer シンプルなタイマー every 3 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | カスタムアラーム | Focus Timer シンプルなタイマー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Size | 39 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TAKUTO YOSHINO](https://appshunter.io/developer/1877756143) | [Waffle, LCC](https://appshunter.io/developer/1777946699) |

## What reviewers say

### カスタムアラーム

[App page](https://appshunter.io/ios/app/id6759268514)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $2.99 | one-time |


### Focus Timer シンプルなタイマー

[App page](https://appshunter.io/ios/app/focus-timer/id6759997921)

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

**In-app purchases:** none


## Frequently asked questions

### Is カスタムアラーム free?

カスタムアラーム is free to download, with in-app purchases available.

### Is Focus Timer シンプルなタイマー free?

Focus Timer シンプルなタイマー is free to download, with no in-app purchases.

### Do カスタムアラーム or Focus Timer シンプルなタイマー have ads?

Focus Timer シンプルなタイマー shows ads; カスタムアラーム does not.

### Which is updated more often, カスタムアラーム or Focus Timer シンプルなタイマー?

カスタムアラーム ships an update every 4 weeks, and Focus Timer シンプルなタイマー every 3 days. Most recently, カスタムアラーム was updated on November 5, 2026 and Focus Timer シンプルなタイマー on November 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.*