# 作れる単語帳 Folio vs ReBrain

The clearest difference is ads: ReBrain at none against 作れる単語帳 Folio's shown. ReBrain also leads on update cadence (every 10 days vs every 8 months). 作れる単語帳 Folio's advantage is iOS requirement (14.0 vs 18.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 作れる単語帳 Folio sells 1 in-app purchase, starting at $1.99 per month and ReBrain sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

作れる単語帳 Folio ships an update every 8 months, ReBrain every 10 days. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 作れる単語帳 Folio | ReBrain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 10 days** |
| Size | 55 MB | 87 MB |
| Requires iOS | **14.0** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yasuhiro kojima](https://appshunter.io/developer/1244729145) | [ryota hatazawa](https://appshunter.io/developer/1765243887) |

## What reviewers say

### 作れる単語帳 Folio

[App page](https://appshunter.io/ios/app/folio/id6504839553)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $1.99 | per month |


### ReBrain

[App page](https://appshunter.io/ios/app/rebrain-flashcards-app/id6742406188)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReBrain Pro 月額 | $1.99 | per month |
| ReBrain Pro 年額 | $5.99 | per year |
| ReBrain Pro 買い切り | $9.99 | one-time |


## Frequently asked questions

### Is 作れる単語帳 Folio free?

作れる単語帳 Folio is free to download, with in-app purchases available.

### Is ReBrain free?

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

### Do 作れる単語帳 Folio or ReBrain have ads?

作れる単語帳 Folio shows ads; ReBrain does not.

### Which is updated more often, 作れる単語帳 Folio or ReBrain?

作れる単語帳 Folio ships an update every 8 months, and ReBrain every 10 days. Most recently, 作れる単語帳 Folio was updated on October 13, 2026 and ReBrain on October 24, 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.*