# 暗記シート vs RedSheetCamera

The clearest difference is in-app purchases: 暗記シート at none against RedSheetCamera's 1. 暗記シート also leads on update cadence (every 2 months vs every 15 months) and device support (3 vs 1). RedSheetCamera's advantage is ads (none vs shown). On price, review sentiment and monetization model there is nothing between them.

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

暗記シート ships an update every 2 months, RedSheetCamera every 15 months. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 暗記シート | RedSheetCamera |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **46.9% of reviews** | 42.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 15 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 9 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shigeaki Harada](https://appshunter.io/developer/897400523) | [taishin miyamoto](https://appshunter.io/developer/1570395608) |

## What reviewers say

### 暗記シート

[App page](https://appshunter.io/ios/app/fight/id1233490505)

Create your own flashcards by masking text from photos or camera input. This free app helps you memorize information through repetition and focused study sessions. Save and organize your study materials with custom categories and notes.

**Highlights:** Create flashcards from photos/camera, Mask and reveal text for memorization, Adjustable sheet and pen properties, Unlimited file saving, Categorize and organize study files, iCloud Drive integration

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 暗記シート free?

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

### Is RedSheetCamera free?

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

### Do 暗記シート or RedSheetCamera have ads?

暗記シート shows ads; RedSheetCamera does not.

### Which is updated more often, 暗記シート or RedSheetCamera?

暗記シート ships an update every 2 months, and RedSheetCamera every 15 months. Most recently, 暗記シート was updated on September 20, 2026 and RedSheetCamera on September 10, 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.*