# 集中読書 vs BGMタイマー

The clearest difference is in-app purchases: BGMタイマー at none against 集中読書's 2. BGMタイマー also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.6). On price and ads there is nothing between them.

Both are free to download. 集中読書 sells 2 in-app purchases, starting at $1.99 per month. BGMタイマー asks for nothing beyond the download.

## The numbers

| Metric | 集中読書 | BGMタイマー |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Size | 44 MB | 112 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [QOOQ inc.](https://appshunter.io/developer/446639722) | [takehiro kawada](https://appshunter.io/developer/1572663055) |

## What reviewers say

### 集中読書

[App page](https://appshunter.io/ios/app/id6759477350)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月間サブスクリプション | $1.99 | per month |
| 買い切り | $9.99 | one-time |


### BGMタイマー

[App page](https://appshunter.io/ios/app/bgm/id6762080041)

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

**In-app purchases:** none


## Frequently asked questions

### Is 集中読書 free?

集中読書 is free to download, with in-app purchases available.

### Is BGMタイマー free?

BGMタイマー is free to download, with no in-app purchases.

### Do 集中読書 or BGMタイマー have ads?

Neither 集中読書 nor BGMタイマー shows ads.

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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.*