# Scuba vs EonBook

The clearest difference is iOS requirement: EonBook at 15.1 against Scuba's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Scuba sells 1 in-app purchase, starting at $24.99 per year and EonBook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Scuba | EonBook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 58 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tim Brown](https://appshunter.io/developer/1792076997) | [海声 池](https://appshunter.io/developer/1889531365) |

## What reviewers say

### Scuba

[App page](https://appshunter.io/ios/app/scuba-classic-book-reader/id6761863067)

Discover and read classic books with a modern, mobile-first approach. This app breaks down stories into digestible beats, using vertical swipes for natural phone navigation. Story recaps and offline reading features help you maintain your reading habit.

**Highlights:** Story beats for easier reading, Recaps to remember story progress, Vertical swiping for phone reading, Home screen widget for current book, Offline reading support, Curated bookstore

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scuba Reading Pass | $24.99 | per year |


### EonBook

[App page](https://appshunter.io/ios/app/eonbook/id6766190345)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Scuba free?

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

### Is EonBook free?

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

### Do Scuba or EonBook have ads?

Neither Scuba nor EonBook shows ads.

### Which is updated more often, Scuba or EonBook?

Scuba ships an update every 3 days, and EonBook every 3 days. Most recently, Scuba was updated on September 21, 2026 and EonBook on September 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.*