# Second Brain SB vs Atlas

The clearest difference is device support: Atlas at 3 against Second Brain SB's —. Second Brain SB's advantage is iOS requirement (11.0 vs 13.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Second Brain SB | Atlas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Size | 26 MB | 23 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Gianlucca Vick](https://appshunter.io/developer/1691417067) | [Tony Ennis](https://appshunter.io/developer/1700199881) |

## What reviewers say

### Second Brain SB

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

**In-app purchases:** none


### Atlas

[App page](https://appshunter.io/ios/app/atlas-second-brain/id6477493110)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Second Brain SB free?

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

### Is Atlas free?

Atlas 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.*