# Second Brain vs Second Brain SB

The clearest difference is in-app purchases: Second Brain SB at none against Second Brain's 3. Second Brain SB also leads on iOS requirement (11.0 vs 16.6). On price there is nothing between them.

Both are free to download. Second Brain sells 3 in-app purchases, starting at $5.99 per 7 days. Second Brain SB asks for nothing beyond the download.

## The numbers

| Metric | Second Brain | Second Brain SB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (61 ratings)](https://appshunter.io/ios/app/second-brain-ai-chat/id6446254904/reviews)** | — |
| Number of ratings | **61** | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 4 weeks | — |
| Monetization | Freemium | — |
| Size | 78 MB | 26 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | **iPhone** | — |
| Age rating | 17+ | 4+ |
| Developer | [Tairs Rzajevs](https://appshunter.io/developer/1576119083) | [Gianlucca Vick](https://appshunter.io/developer/1691417067) |

## What reviewers say

### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-chat/id6446254904)

This AI chatbot uses GPT technology to generate creative content like stories and songs, answer questions, and provide entertainment. It offers a premium subscription for enhanced features and a free trial period.

**Highlights:** AI-powered writing assistance, Story and song generation, Question answering, Joke telling, GPT technology integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium for one Week | $5.99 | per 7 days |
| Premium for one Month | $9.99 | per month |
| Premium for one Year | $39.99 | per year |


### Second Brain SB

[App page](https://appshunter.io/ios/app/second-brain-sb/id6449985684)

**In-app purchases:** none


## Frequently asked questions

### Is Second Brain free?

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

### Is Second Brain SB free?

Second Brain SB is free to download, with no in-app purchases.

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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.*