# ReBrain vs 単語帳アプリ Fluorite(フローライト)

The clearest difference is update cadence: ReBrain at every 10 days against 単語帳アプリ Fluorite(フローライト)'s every 3 weeks. 単語帳アプリ Fluorite(フローライト)'s advantage is iOS requirement (12.0 vs 18.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ReBrain sells 3 in-app purchases, starting at $1.99 per month and 単語帳アプリ Fluorite(フローライト) sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReBrain ships an update every 10 days, 単語帳アプリ Fluorite(フローライト) every 3 weeks. The most recent releases landed on September 12, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ReBrain | 単語帳アプリ Fluorite(フローライト) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Size | 86 MB | 82 MB |
| Requires iOS | 18.2 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ryota hatazawa](https://appshunter.io/developer/1765243887) | [可茂IT塾](https://appshunter.io/developer/1603016681) |

## What reviewers say

### 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 |


### 単語帳アプリ Fluorite(フローライト)

[App page](https://appshunter.io/ios/app/fluorite/id6746140344)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is ReBrain free?

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

### Is 単語帳アプリ Fluorite(フローライト) free?

単語帳アプリ Fluorite(フローライト) is free to download, with in-app purchases available.

### Do ReBrain or 単語帳アプリ Fluorite(フローライト) have ads?

Neither ReBrain nor 単語帳アプリ Fluorite(フローライト) shows ads.

### Which is updated more often, ReBrain or 単語帳アプリ Fluorite(フローライト)?

ReBrain ships an update every 10 days, and 単語帳アプリ Fluorite(フローライト) every 3 weeks. Most recently, ReBrain was updated on September 12, 2026 and 単語帳アプリ Fluorite(フローライト) on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*