# Sumi Book vs Prose Reader

The clearest difference is in-app purchases: Prose Reader at none against Sumi Book's 3. Sumi Book's advantage is update cadence (every 3 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sumi Book sells 3 in-app purchases, starting at $3.99 per month. Prose Reader asks for nothing beyond the download.

Sumi Book ships an update every 3 days, Prose Reader every 2 months. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Sumi Book | Prose Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 months |
| Size | 49 MB | 125 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Oktay Demir](https://appshunter.io/developer/6777725671) | [Elia Salerno](https://appshunter.io/developer/1844844214) |

## What reviewers say

### Sumi Book

[App page](https://appshunter.io/ios/app/sumi-book/id6777730252)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The Fine Press — Monthly | $3.99 | per month |
| The Fine Press — Annual | $24.99 | per year |
| The Fine Press — Lifetime | $49.99 | one-time |


### Prose Reader

[App page](https://appshunter.io/ios/app/prose-reader/id6785636552)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sumi Book free?

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

### Is Prose Reader free?

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

### Do Sumi Book or Prose Reader have ads?

Neither Sumi Book nor Prose Reader shows ads.

### Which is updated more often, Sumi Book or Prose Reader?

Sumi Book ships an update every 3 days, and Prose Reader every 2 months. Most recently, Sumi Book was updated on September 10, 2026 and Prose Reader on September 22, 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.*