# 指数・対数フラッシュ暗算 vs SentenceBox

The clearest difference is in-app purchases: 指数・対数フラッシュ暗算 at none against SentenceBox's 1. SentenceBox's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SentenceBox sells 1 one-off in-app purchase. 指数・対数フラッシュ暗算 asks for nothing beyond the download.

## The numbers

| Metric | 指数・対数フラッシュ暗算 | SentenceBox |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Size | 4 MB | 5 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [masahiko akita](https://appshunter.io/developer/1891674153) | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) |

## What reviewers say

### 指数・対数フラッシュ暗算

[App page](https://appshunter.io/ios/app/id6770951661)

**Features:** macOS Compatibility

**In-app purchases:** none


### SentenceBox

[App page](https://appshunter.io/ios/app/sentencebox/id6794504718)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| フルパッケージ | $5.99 | one-time |


## Frequently asked questions

### Is 指数・対数フラッシュ暗算 free?

指数・対数フラッシュ暗算 is free to download, with no in-app purchases.

### Is SentenceBox free?

SentenceBox is free to download, with in-app purchases available.

### Do 指数・対数フラッシュ暗算 or SentenceBox have ads?

指数・対数フラッシュ暗算 shows ads; SentenceBox 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.*