# Lamblight AI vs Fabius

The clearest difference is in-app purchases: Lamblight AI at none against Fabius's 3. Fabius's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Fabius sells 3 one-off in-app purchases. Lamblight AI asks for nothing beyond the download.

Lamblight AI ships an update weekly, Fabius every 9 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Lamblight AI | Fabius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fabius/id6806862609/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 69 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Plingpling](https://appshunter.io/developer/1868656982) | [Subhi Mukbel](https://appshunter.io/developer/6806046893) |

## What reviewers say

### Lamblight AI

[App page](https://appshunter.io/ios/app/lamblight-ai/id6757749541)

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

**In-app purchases:** none


### Fabius

[App page](https://appshunter.io/ios/app/fabius/id6806862609)

Design personalized AI agents with unique personalities, instructions, and tools. Upload documents and images to provide agents with specific knowledge for grounded answers. Collaborate with others in shared workspaces and connect to channels like Telegram.

**Highlights:** Custom AI agent design, Personalized agent personalities, Document and image knowledge integration, Team collaboration with roles, Telegram bot integration, Private by design, no tracking

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1,400 Credits | $4.99 | one-time |
| 6,200 Credits | $19.99 | one-time |
| 17,000 Credits | $49.99 | one-time |


## Frequently asked questions

### Is Lamblight AI free?

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

### Is Fabius free?

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

### Do Lamblight AI or Fabius have ads?

Lamblight AI shows ads; Fabius does not.

### Which is updated more often, Lamblight AI or Fabius?

Lamblight AI ships an update weekly, and Fabius every 9 days. Most recently, Lamblight AI was updated on October 31, 2026 and Fabius on October 31, 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.*