# BookStax vs HAIchat

The clearest difference is in-app purchases: HAIchat at none against BookStax's 4. BookStax's advantage is update cadence (every 9 days vs monthly) and iOS requirement (18.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. BookStax sells 4 one-off in-app purchases. HAIchat asks for nothing beyond the download.

BookStax ships an update every 9 days, HAIchat monthly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | BookStax | HAIchat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bookstax/id6761068485/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free | — |
| Size | 16 MB | 40 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Sven Uwe Hanold](https://appshunter.io/developer/1887623795) | [Stefan Weiberg](https://appshunter.io/developer/6800411077) |

## What reviewers say

### BookStax

[App page](https://appshunter.io/ios/app/bookstax/id6761068485)

Access and manage your self-hosted BookStack knowledge base natively on iPhone. Edit pages with a Markdown editor, search your content, and access it offline. Prioritizes privacy with secure API token storage.

**Highlights:** BookStack hierarchy navigation, Full-text search with filters, Markdown editor with live preview, Offline read access, Secure API token connection, Light/Dark/System mode, Multi-language support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Page | $2.99 | one-time |
| Themes & more Servers | $5.99 | one-time |
| Book | $5.99 | one-time |
| Encyclopaedia | $12.99 | one-time |


### HAIchat

[App page](https://appshunter.io/ios/app/haichat/id6800411075)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BookStax free?

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

### Is HAIchat free?

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

### Do BookStax or HAIchat have ads?

Neither BookStax nor HAIchat shows ads.

### Which is updated more often, BookStax or HAIchat?

BookStax ships an update every 9 days, and HAIchat monthly. Most recently, BookStax was updated on October 31, 2026 and HAIchat on October 29, 2026.

---

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