# LibOU vs Speak Flow

The clearest difference is iOS requirement: LibOU at 13.0 against Speak Flow's 15.0. On price, update cadence, ads 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.

LibOU ships an update monthly, Speak Flow every 2 months. The most recent releases landed on October 9, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | LibOU | Speak Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 23 MB | 86 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pyramid Software and Consulting Company Limited](https://appshunter.io/developer/885416042) | [Hoang Nguyen](https://appshunter.io/developer/1892780492) |

## What reviewers say

### LibOU

[App page](https://appshunter.io/ios/app/libou/id1623776268)

**Features:** macOS Compatibility

**In-app purchases:** none


### Speak Flow

[App page](https://appshunter.io/ios/app/speak-flow/id6762073338)

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

**In-app purchases:** none


## Frequently asked questions

### Is LibOU free?

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

### Is Speak Flow free?

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

### Do LibOU or Speak Flow have ads?

Neither LibOU nor Speak Flow shows ads.

### Which is updated more often, LibOU or Speak Flow?

LibOU ships an update monthly, and Speak Flow every 2 months. Most recently, LibOU was updated on October 9, 2026 and Speak Flow on October 22, 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.*