# FluidVox vs Second Brain

The clearest difference is in-app purchases: Second Brain at none against FluidVox's 2. Second Brain also leads on update cadence (every 2 days vs every 3 weeks). FluidVox's advantage is iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. FluidVox sells 2 in-app purchases, starting at $4.99 per month. Second Brain asks for nothing beyond the download.

FluidVox ships an update every 3 weeks, Second Brain every 2 days. Both last shipped on October 10, 2026.

## The numbers

| Metric | FluidVox | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 24 MB | 26 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [AZ Digital Inc.](https://appshunter.io/developer/1848260997) | [kim dahye](https://appshunter.io/developer/1868391710) |

## What reviewers say

### FluidVox

[App page](https://appshunter.io/ios/app/fluidvox-speech-to-text/id6763837185)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FluidVox Pro | $4.99 | per month |
| FluidVox Local Lifetime | $14.99 | one-time |


### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-note/id6799343264)

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

**In-app purchases:** none


## Frequently asked questions

### Is FluidVox free?

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

### Is Second Brain free?

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

### Do FluidVox or Second Brain have ads?

Neither FluidVox nor Second Brain shows ads.

### Which is updated more often, FluidVox or Second Brain?

FluidVox ships an update every 3 weeks, and Second Brain every 2 days. Most recently, FluidVox was updated on October 10, 2026 and Second Brain on October 10, 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.*