# Youbrain vs FluidDocs

The clearest difference is in-app purchases: FluidDocs at none against Youbrain's 3. FluidDocs also leads on update cadence (daily vs weekly). Youbrain's advantage is iOS requirement (15.1 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. Youbrain sells 3 in-app purchases, starting at $2.99 per 7 days. FluidDocs asks for nothing beyond the download.

Youbrain ships an update weekly, FluidDocs daily. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Youbrain | FluidDocs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fluiddocs/id6758372596/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | — | Free |
| Size | 27 MB | 1 MB |
| Requires iOS | **15.1** | 26.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SAINT MARTIN GESTION](https://appshunter.io/developer/1378115438) | [Artiste, LLC](https://appshunter.io/developer/1509157754) |

## What reviewers say

### Youbrain

[App page](https://appshunter.io/ios/app/youbrain-video-intelligence/id6749244086)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Youbrain Premium | $2.99 | per 7 days |
| Youbrain Premium | $11.99 | per month |
| Youbrain Premium | $59.99 | per year |


### FluidDocs

[App page](https://appshunter.io/ios/app/fluiddocs/id6758372596)

Transform your documents into an interactive knowledge base. Ask natural language questions and get instant, grounded answers directly from your imported files, even without an internet connection. Ideal for professionals who need quick access to information from technical manuals, research papers, and reports.

**Highlights:** Offline document Q&A, Import PDFs, Markdown, code, text, Natural language questioning, Answers grounded in document text, Privacy-first design, Conversation history

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Youbrain free?

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

### Is FluidDocs free?

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

### Do Youbrain or FluidDocs have ads?

Neither Youbrain nor FluidDocs shows ads.

### Which is updated more often, Youbrain or FluidDocs?

Youbrain ships an update weekly, and FluidDocs daily. Most recently, Youbrain was updated on October 20, 2026 and FluidDocs on October 24, 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.*