# Bio Architect vs Kujun

The clearest difference is price: Kujun at Free against Bio Architect's $2.99. Bio Architect's advantage is update cadence (every 11 days vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Kujun is free to download; Bio Architect costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bio Architect ships an update every 11 days, Kujun every 3 months. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Bio Architect | Kujun |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Size | 3 MB | 49 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Robert Corbin](https://appshunter.io/developer/1890247992) | [Code with Beto](https://appshunter.io/developer/1735070532) |

## What reviewers say

### Bio Architect

[App page](https://appshunter.io/ios/app/bio-architect-bio-writer/id6771379988)

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

**In-app purchases:** none


### Kujun

[App page](https://appshunter.io/ios/app/kujun/id6790163790)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bio Architect free?

Bio Architect costs $2.99, with no in-app purchases.

### Is Kujun free?

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

### Do Bio Architect or Kujun have ads?

Neither Bio Architect nor Kujun shows ads.

### Which is updated more often, Bio Architect or Kujun?

Bio Architect ships an update every 11 days, and Kujun every 3 months. Most recently, Bio Architect was updated on October 12, 2026 and Kujun on October 15, 2026.

---

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