# RedSheetCamera vs スマホで赤シート

The clearest difference is in-app purchases: スマホで赤シート at none against RedSheetCamera's 1. スマホで赤シート also leads on update cadence (daily vs every 15 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. RedSheetCamera sells 1 one-off in-app purchase. スマホで赤シート asks for nothing beyond the download.

RedSheetCamera ships an update every 15 months, スマホで赤シート daily. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | RedSheetCamera | スマホで赤シート |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 15 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [taishin miyamoto](https://appshunter.io/developer/1570395608) | [Keisuke Shibata](https://appshunter.io/developer/1791551970) |

## What reviewers say

### RedSheetCamera

[App page](https://appshunter.io/ios/app/redsheetcamera/id6451382182)

This study support app uses your camera to hide key information in your notes or textbooks. It then facilitates active recall practice to strengthen retention for exams, language learning, and certifications.

**Highlights:** Camera-based review of learning material, Adjustable information visibility, Uninterrupted study flow with simple controls, Supports consistent daily review, Active recall practice

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RedSheetCamera - Remove Ads | $1.99 | one-time |


### スマホで赤シート

[App page](https://appshunter.io/ios/app/id6468587251)

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

**In-app purchases:** none


## Frequently asked questions

### Is RedSheetCamera free?

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

### Is スマホで赤シート free?

スマホで赤シート is free to download, with no in-app purchases.

### Do RedSheetCamera or スマホで赤シート have ads?

Neither RedSheetCamera nor スマホで赤シート shows ads.

### Which is updated more often, RedSheetCamera or スマホで赤シート?

RedSheetCamera ships an update every 15 months, and スマホで赤シート daily. Most recently, RedSheetCamera was updated on September 28, 2026 and スマホで赤シート on September 27, 2026.

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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.*