# Memorizing application vs Red Sheet

The clearest difference is update cadence: Red Sheet at every 3 days against Memorizing application's monthly. Red Sheet also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Memorizing application sells 1 one-off in-app purchase and Red Sheet sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Memorizing application ships an update monthly, Red Sheet every 3 days. The most recent releases landed on May 17, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Memorizing application | Red Sheet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/red-sheet-pdf-study-app/id1580506756/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 193 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [funspire, Inc.](https://appshunter.io/developer/928040148) | [Foodmenu.world Inc.](https://appshunter.io/developer/1438351063) |

## What reviewers say

### Memorizing application

[App page](https://appshunter.io/ios/app/memorizing-application/id1071426322)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisement | $2.99 | one-time |


### Red Sheet

[App page](https://appshunter.io/ios/app/red-sheet-pdf-study-app/id1580506756)

Create and study flashcards from your PDFs, notes, and images. This app lets you hide and reveal text to transform study materials into interactive flashcards for faster memorization. Supports various import options and flexible study tools.

**Highlights:** Create flashcards from PDFs, Import from note apps and cloud storage, Hide and reveal text for study, Create flashcards from photos and images, Vocabulary and word list flashcards, One-tap show/hide for quick review

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Special plan | $2.99 | per month |
| Monthly Super Saver Plan | $2.99 | per month |
| Monthly Value Plan | $3.99 | per month |
| Basic Plan | $5.99 | per month |
| 3 Month Plan - V 3.1.5 needed | $9.99 | per 3 months |
| Half year plan (Sale) | $17.99 | per 6 months |
| Half year plan - V2.9.0 needed | $22.99 | per 6 months |


## Frequently asked questions

### Is Memorizing application free?

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

### Is Red Sheet free?

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

### Do Memorizing application or Red Sheet have ads?

Both Memorizing application and Red Sheet show ads.

### Which is updated more often, Memorizing application or Red Sheet?

Memorizing application ships an update monthly, and Red Sheet every 3 days. Most recently, Memorizing application was updated on May 17, 2026 and Red Sheet on September 26, 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.*