# AudioBookSync vs Earmark Audiobooks

The clearest difference is in-app purchases: Earmark Audiobooks at none against AudioBookSync's 1. Earmark Audiobooks also leads on update cadence (every 4 days vs every 2 weeks). AudioBookSync's advantage is iOS requirement (18.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. AudioBookSync sells 1 one-off in-app purchase. Earmark Audiobooks asks for nothing beyond the download.

AudioBookSync ships an update every 2 weeks, Earmark Audiobooks every 4 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | AudioBookSync | Earmark Audiobooks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 12 MB | 10 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hans-Peter Jordi](https://appshunter.io/developer/1879027494) | [AM2 LLC](https://appshunter.io/developer/1541533256) |

## What reviewers say

### AudioBookSync

[App page](https://appshunter.io/ios/app/audiobooksync/id6759492424)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AudioBookSync Pro | $5.99 | one-time |


### Earmark Audiobooks

[App page](https://appshunter.io/ios/app/earmark-audiobooks/id6808821106)

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

**In-app purchases:** none


## Frequently asked questions

### Is AudioBookSync free?

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

### Is Earmark Audiobooks free?

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

### Do AudioBookSync or Earmark Audiobooks have ads?

Neither AudioBookSync nor Earmark Audiobooks shows ads.

### Which is updated more often, AudioBookSync or Earmark Audiobooks?

AudioBookSync ships an update every 2 weeks, and Earmark Audiobooks every 4 days. Most recently, AudioBookSync was updated on October 7, 2026 and Earmark Audiobooks on October 14, 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.*