# プレゼン特訓 vs 集中読書

The clearest difference is in-app purchases: プレゼン特訓 at none against 集中読書's 2. プレゼン特訓 also leads on device support (3 vs 1) and iOS requirement (7.0 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. プレゼン特訓 asks for nothing beyond the download.

## The numbers

| Metric | プレゼン特訓 | 集中読書 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 11 days |
| Size | 2 MB | 44 MB |
| Requires iOS | **7.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sohta Itoh](https://appshunter.io/developer/965803614) | [QOOQ inc.](https://appshunter.io/developer/446639722) |

## What reviewers say

### プレゼン特訓

[App page](https://appshunter.io/ios/app/id1037281101)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is プレゼン特訓 free?

プレゼン特訓 is free to download, with no in-app purchases.

### Is 集中読書 free?

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

### Do プレゼン特訓 or 集中読書 have ads?

Neither プレゼン特訓 nor 集中読書 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.*