# Obook vs LysnBox

The clearest difference is in-app purchases: LysnBox at none against Obook's 2. Obook's advantage is update cadence (every 4 days vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

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

Obook ships an update every 4 days, LysnBox every 2 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Obook | LysnBox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Size | 56 MB | 28 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MHD AMIN ALLAHHAM](https://appshunter.io/developer/1684285067) | [Joseph Thekkekara](https://appshunter.io/developer/6772035200) |

## What reviewers say

### Obook

[App page](https://appshunter.io/ios/app/obook-text-to-speech/id6746949882)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Obook – AI Read Assistant Pro | $4.99 | per month |
| Obook AI Pro – Yearly | $49.99 | per year |


### LysnBox

[App page](https://appshunter.io/ios/app/lysnbox/id6772035198)

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

**In-app purchases:** none


## Frequently asked questions

### Is Obook free?

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

### Is LysnBox free?

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

### Do Obook or LysnBox have ads?

Neither Obook nor LysnBox shows ads.

### Which is updated more often, Obook or LysnBox?

Obook ships an update every 4 days, and LysnBox every 2 months. Most recently, Obook was updated on October 26, 2026 and LysnBox on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*