# 2ndBrain vs PDF Tools +

The clearest difference is in-app purchases: PDF Tools + at none against 2ndBrain's 9. 2ndBrain's advantage is device support and iOS requirement (11.0 vs 17.6). On price there is nothing between them.

Both are free to download. 2ndBrain sells 9 in-app purchases, starting at $1.99 per 7 days. PDF Tools + asks for nothing beyond the download.

## The numbers

| Metric | 2ndBrain | PDF Tools + |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 5 weeks | — |
| Size | 79 MB | 1 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Shajeel Afzal](https://appshunter.io/developer/1489212410) | [Abdulrahman Alfantokh](https://appshunter.io/developer/1758833961) |

## What reviewers say

### 2ndBrain

[App page](https://appshunter.io/ios/app/2ndbrain-ai-powered-chatbot/id6446216874)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| .Weekly Subscription | $2.99 | per 7 days |
| Weekly Subscription. | $3.99 | per 7 days |
| Monthly Subscription. | $4.99 | per month |
| Monthly Subscription. | $5.99 | per month |
| Monthly Subscription. | $6.99 | per month |
| Quarterly Subscription. | $13.99 | per 3 months |
| Quarterly Subscription. | $14.99 | per 3 months |
| Quarterly Subscription. | $17.99 | per 3 months |


### PDF Tools +

[App page](https://appshunter.io/ios/app/pdf-tools-plus/id6766302131)

**In-app purchases:** none


## Frequently asked questions

### Is 2ndBrain free?

2ndBrain is free to download, with in-app purchases available.

### Is PDF Tools + free?

PDF Tools + 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.*