# FinnBook vs Unison Reader

The clearest difference is update cadence: Unison Reader at every 2 days against FinnBook's every 4 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FinnBook sells 2 in-app purchases, starting at $1.99 per month and Unison Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

FinnBook ships an update every 4 days, Unison Reader every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | FinnBook | Unison Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unison-reader/id6816232927/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 223 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Maziar Rezvani](https://appshunter.io/developer/937664407) | [Magrathea Software, LLC](https://appshunter.io/developer/6812077549) |

## What reviewers say

### FinnBook

[App page](https://appshunter.io/ios/app/finnbook-epub-and-ebook-reader/id6770285856)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FinnBook Pro | $1.99 | per month |
| FinnBook Pro | $19.99 | per year |


### Unison Reader

[App page](https://appshunter.io/ios/app/unison-reader/id6816232927)

This app allows you to seamlessly switch between reading an ebook and listening to its audiobook. It synchronizes narration with text, offers generated voices for ebooks without audiobooks, and supports various file formats. Customize your reading experience with adjustable layouts, speeds, and appearance settings.

**Highlights:** Read and listen in sync, Generated voices for ebooks, Text generation from audiobooks, Import various file formats (EPUB, PDF, DOCX), Customizable reading layouts and appearance, Highlighting, bookmarking, and word lookup, iCloud library synchronization

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Listening unlock | $4.99 | one-time |


## Frequently asked questions

### Is FinnBook free?

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

### Is Unison Reader free?

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

### Do FinnBook or Unison Reader have ads?

Neither FinnBook nor Unison Reader shows ads.

### Which is updated more often, FinnBook or Unison Reader?

FinnBook ships an update every 4 days, and Unison Reader every 2 days. Most recently, FinnBook was updated on October 24, 2026 and Unison Reader on October 24, 2026.

---

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