# Zen Bell Timer vs 音域チェッカー

The clearest difference is in-app purchases: 音域チェッカー at none against Zen Bell Timer's 3. Zen Bell Timer's advantage is ads (none vs shown) and iOS requirement (13.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Zen Bell Timer sells 3 in-app purchases, starting at $1.00 per month. 音域チェッカー asks for nothing beyond the download.

## The numbers

| Metric | Zen Bell Timer | 音域チェッカー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | — |
| Size | 68 MB | 6 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KOIZUMI SEISAKUSHO, K.K.](https://appshunter.io/developer/1758951265) | [SHUNJI KUSAKA](https://appshunter.io/developer/1738810004) |

## What reviewers say

### Zen Bell Timer

[App page](https://appshunter.io/ios/app/zen-bell-timer/id6569245688)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Function expansion | $1.00 | per month |
| Function expansion | $5.00 | per 6 months |
| Function expansion | $8.00 | per year |


### 音域チェッカー

[App page](https://appshunter.io/ios/app/id6760326757)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zen Bell Timer free?

Zen Bell Timer is free to download, with in-app purchases available.

### Is 音域チェッカー free?

音域チェッカー is free to download, with no in-app purchases.

### Do Zen Bell Timer or 音域チェッカー have ads?

音域チェッカー shows ads; Zen Bell Timer does not.

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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.*