# 2sBrain vs AI Workflow Apps

The clearest difference is in-app purchases: AI Workflow Apps at none against 2sBrain's 3. 2sBrain's advantage is update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 2sBrain sells 3 in-app purchases, starting at $3.99 per month. AI Workflow Apps asks for nothing beyond the download.

2sBrain ships an update weekly, AI Workflow Apps every 2 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 2sBrain | AI Workflow Apps |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 66 MB | 5 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Nhu Vuong](https://appshunter.io/developer/1486864462) | [Radial Code](https://appshunter.io/developer/1860547480) |

## What reviewers say

### 2sBrain

[App page](https://appshunter.io/ios/app/2sbrainai-pdf-document-reader/id6768344372)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly | $3.99 | per month |
| VIP Yearly | $19.99 | per year |
| VIP Lifetime | $39.99 | one-time |


### AI Workflow Apps

[App page](https://appshunter.io/ios/app/ai-workflow-apps/id6775397673)

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 2sBrain free?

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

### Is AI Workflow Apps free?

AI Workflow Apps is free to download, with no in-app purchases.

### Do 2sBrain or AI Workflow Apps have ads?

Neither 2sBrain nor AI Workflow Apps shows ads.

### Which is updated more often, 2sBrain or AI Workflow Apps?

2sBrain ships an update weekly, and AI Workflow Apps every 2 months. Most recently, 2sBrain was updated on October 8, 2026 and AI Workflow Apps on October 6, 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.*