# Libri Audiobooks vs ReadPDB

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

Both are free to download. Libri Audiobooks sells 3 in-app purchases, starting at $3.99 per month. ReadPDB asks for nothing beyond the download.

Libri Audiobooks ships an update weekly, ReadPDB daily. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Libri Audiobooks | ReadPDB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/libri-audiobooks/id6748893784/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 86 MB | 13 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NeuraCore Technologies](https://appshunter.io/developer/1812971866) | [Jaime Martin Lozano](https://appshunter.io/developer/1766116629) |

## What reviewers say

### Libri Audiobooks

[App page](https://appshunter.io/ios/app/libri-audiobooks/id6748893784)

This app offers an offline e-reader with on-device text-to-speech capabilities, allowing you to listen to books and articles anywhere. It supports multiple languages and voices, efficient storage, and includes a free catalog of public-domain works.

**Highlights:** On-device neural voices, Instant listening, 45 languages, 150+ voices, Text & Web listening, Small, efficient voice packs, Full PDF & EPUB eReader, Sync across devices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Online Voices Monthly | $3.99 | per month |
| Narratorio | $12.99 | per month |
| Yearly Subscription | $99.99 | per year |


### ReadPDB

[App page](https://appshunter.io/ios/app/readpdb/id6797103554)

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

**In-app purchases:** none


## Frequently asked questions

### Is Libri Audiobooks free?

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

### Is ReadPDB free?

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

### Do Libri Audiobooks or ReadPDB have ads?

Neither Libri Audiobooks nor ReadPDB shows ads.

### Which is updated more often, Libri Audiobooks or ReadPDB?

Libri Audiobooks ships an update weekly, and ReadPDB daily. Most recently, Libri Audiobooks was updated on October 7, 2026 and ReadPDB on October 25, 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.*