# PIDL vs Compendium Audiobooks

The clearest difference is update cadence: Compendium Audiobooks at weekly against PIDL's every 4 weeks. PIDL's advantage is iOS requirement (12.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PIDL ships an update every 4 weeks, Compendium Audiobooks weekly. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PIDL | Compendium Audiobooks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/compendium-audiobooks/id6807578229/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | — | Free |
| Size | 60 MB | 8 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Xentral Methods](https://appshunter.io/developer/464707106) | [Compendium LLC](https://appshunter.io/developer/6807578231) |

## What reviewers say

### PIDL

[App page](https://appshunter.io/ios/app/pidl/id914262569)

**Features:** macOS Compatibility

**In-app purchases:** none


### Compendium Audiobooks

[App page](https://appshunter.io/ios/app/compendium-audiobooks/id6807578229)

Access a vast library of classic literature and philosophy as audiobooks. Enjoy chapter-by-chapter playback with adjustable speed and background listening. Start with free first chapters and unlock more content with an account.

**Highlights:** 690+ audiobooks library, Chapter-by-chapter playback, Adjustable playback speed, Background audio playback, Save progress across sessions, No sign-up required for free chapters

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

**In-app purchases:** none


## Frequently asked questions

### Is PIDL free?

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

### Is Compendium Audiobooks free?

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

### Do PIDL or Compendium Audiobooks have ads?

Neither PIDL nor Compendium Audiobooks shows ads.

### Which is updated more often, PIDL or Compendium Audiobooks?

PIDL ships an update every 4 weeks, and Compendium Audiobooks weekly. Most recently, PIDL was updated on October 26, 2026 and Compendium Audiobooks on October 31, 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.*