# Neubook vs Koham

The clearest difference is iOS requirement: Neubook at 15.0 against Koham's 27.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neubook sells 2 in-app purchases, starting at $4.99 per month and Koham sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Neubook ships an update every 11 days, Koham weekly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Neubook | Koham |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/koham/id6792972491/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 99 MB | 23 MB |
| Requires iOS | **15.0** | 27.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bibin Mathew](https://appshunter.io/developer/1864465932) | [统伟 陈](https://appshunter.io/developer/1766625276) |

## What reviewers say

### Neubook

[App page](https://appshunter.io/ios/app/neubook-epub-and-rss-reader/id6761379091)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Neubook Plus | $4.99 | per month |
| Neubook Plus | $39.99 | per year |


### Koham

[App page](https://appshunter.io/ios/app/koham/id6792972491)

Engage in deep conversations with your books using AI. Import your EPUBs and explore their content through interactive dialogue, fostering self-understanding. The app also features a calm EPUB reader and remembers your discussion history.

**Highlights:** AI-powered book conversations, Import personal EPUB collections, Real-time voice interaction, EPUB reader with customization, Discussion memory and editing, API key configuration for AI

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Koham Supporter | $6.99 | one-time |


## Frequently asked questions

### Is Neubook free?

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

### Is Koham free?

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

### Do Neubook or Koham have ads?

Neither Neubook nor Koham shows ads.

### Which is updated more often, Neubook or Koham?

Neubook ships an update every 11 days, and Koham weekly. Most recently, Neubook was updated on October 20, 2026 and Koham 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.*