# Local Brain vs OThree AI

The clearest difference is in-app purchases: Local Brain at none against OThree AI's 1. Local Brain also leads on review sentiment (33% vs 0%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OThree AI sells 1 in-app purchase, starting at $14.99 per month. Local Brain asks for nothing beyond the download.

Local Brain ships an update every 10 days, OThree AI every 9 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Local Brain | OThree AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (7 ratings)](https://appshunter.io/ios/app/local-brain/id6476066730/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 9 days** |
| Monetization | **Free** | Freemium |
| Size | 8 MB | 1.7 GB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Michal Jach](https://appshunter.io/developer/1474348197) | [Seven Delta Seven LLC](https://appshunter.io/developer/1782302903) |

## What reviewers say

### Local Brain

[App page](https://appshunter.io/ios/app/local-brain/id6476066730)

This app allows you to run powerful AI language models directly on your device, ensuring complete privacy and offline functionality. Select from various models and manage multiple conversations simultaneously for a personalized AI experience.

**Highlights:** Run AI models locally, Full offline capability, Choose from multiple models, Create multiple chat contexts, Privacy-focused AI

**Features:** macOS Compatibility

**In-app purchases:** none


### OThree AI

[App page](https://appshunter.io/ios/app/othree-ai-fast-private-chat/id6740998410)

This AI chat application provides instant answers and assistance using advanced language models. It offers both offline and cloud-based access, prioritizing user privacy with a zero-data-storage policy. Enjoy seamless compatibility across Apple devices for a convenient AI experience.

**Highlights:** Offline Large Language Model, Ultra-fast Cloud LLM, Zero-data storage privacy, Universal Apple device compatibility, Quick answers and brainstorming, Drafting emails and documents

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OThree Premium | $14.99 | per month |


## Frequently asked questions

### Is Local Brain free?

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

### Is OThree AI free?

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

### Do Local Brain or OThree AI have ads?

Neither Local Brain nor OThree AI shows ads.

### Which is updated more often, Local Brain or OThree AI?

Local Brain ships an update every 10 days, and OThree AI every 9 days. Most recently, Local Brain was updated on October 24, 2026 and OThree AI on October 18, 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.*