# ReBrain vs smart

The clearest difference is in-app purchases: smart at none against ReBrain's 3. smart also leads on iOS requirement (12.0 vs 18.2). ReBrain's advantage is update cadence (every 10 days vs every 2 months). On price, ads 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. smart asks for nothing beyond the download.

ReBrain ships an update every 10 days, smart every 2 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ReBrain | smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Size | 87 MB | 172 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) | [Rahul Garg](https://appshunter.io/developer/1462606310) |

## 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 |


### smart

[App page](https://appshunter.io/ios/app/smart-games/id6746445090)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ReBrain free?

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

### Is smart free?

smart is free to download, with no in-app purchases.

### Do ReBrain or smart have ads?

Neither ReBrain nor smart shows ads.

### Which is updated more often, ReBrain or smart?

ReBrain ships an update every 10 days, and smart every 2 months. Most recently, ReBrain was updated on October 24, 2026 and smart on October 19, 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.*