# Dynbooks vs Audissey

The clearest difference is in-app purchases: Dynbooks at none against Audissey's 1. Dynbooks also leads on ads (none vs shown) and iOS requirement (15.0 vs 26.5). Audissey's advantage is update cadence (every 2 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Audissey sells 1 one-off in-app purchase. Dynbooks asks for nothing beyond the download.

Dynbooks ships an update fortnightly, Audissey every 2 days. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Dynbooks | Audissey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 58 MB | 362 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Paulo Henrique](https://appshunter.io/developer/1852401908) | [Won O Soft](https://appshunter.io/developer/329958815) |

## What reviewers say

### Dynbooks

[App page](https://appshunter.io/ios/app/dynbooks/id6755168641)

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

**In-app purchases:** none


### Audissey

[App page](https://appshunter.io/ios/app/audissey-web-audio-reader/id6784635190)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audissey Pro | $8.99 | one-time |


## Frequently asked questions

### Is Dynbooks free?

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

### Is Audissey free?

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

### Do Dynbooks or Audissey have ads?

Audissey shows ads; Dynbooks does not.

### Which is updated more often, Dynbooks or Audissey?

Dynbooks ships an update fortnightly, and Audissey every 2 days. Most recently, Dynbooks was updated on November 12, 2026 and Audissey on November 10, 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.*