# 赤シート暗記 vs SmartRedFilter

The clearest difference is in-app purchases: 赤シート暗記 at none against SmartRedFilter's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SmartRedFilter sells 1 one-off in-app purchase. 赤シート暗記 asks for nothing beyond the download.

## The numbers

| Metric | 赤シート暗記 | SmartRedFilter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Size | 4 MB | 11 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [hirokazu murabe](https://appshunter.io/developer/894364772) | [Mitsuhiro Hashimoto](https://appshunter.io/developer/509482512) |

## What reviewers say

### 赤シート暗記

[App page](https://appshunter.io/ios/app/ocr/id6770425259)

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

**In-app purchases:** none


### SmartRedFilter

[App page](https://appshunter.io/ios/app/smartredfilter/id6771782559)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $1.99 | one-time |


## Frequently asked questions

### Is 赤シート暗記 free?

赤シート暗記 is free to download, with no in-app purchases.

### Is SmartRedFilter free?

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

### Do 赤シート暗記 or SmartRedFilter have ads?

Both 赤シート暗記 and SmartRedFilter show 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.*