# fullmoon: local intelligence — private and local LLM chat

> Private, offline LLM chat on-device for Apple platforms. (iPhone/iPad app by Mainframe Computer, Inc..)

- Source: https://appshunter.io/ios/app/fullmoon-local-intelligence/id6727014156 (this page in markdown: same URL + `.md`)
- Developer: [Mainframe Computer, Inc.](https://appshunter.io/developer/1766722186)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.40/5 from 100 App Store ratings · 81 written reviews indexed
- Age rating: 17+
- Requires: iOS 17.6 · 30 MB
- Languages: American English
- Released: 2025-01-13
- Data updated: 2026-08-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/fullmoon-local-intelligence/id6727014156/reviews.md

## What is fullmoon?

the simplest way to use private LLMs: works fully offline and private when you don’t have internet. runs models on-device optimized for Apple silicon.

works on every platform: iOS, iPadOS, macOS, visionOS

personalize: adjust the theme, fonts, and system prompt in the app.

Shortcut: chat with fullmoon or get an output from a local model to use with other actions.

free, open source, private.

## Key features

- Private LLM chat
- Fully offline operation
- On-device model execution
- Cross-platform Apple support
- Customizable themes and fonts
- Shortcut integration

## What do users think of fullmoon?

Overall sentiment: positive

**Pros**

- 🚀 Fast and efficient
- 🔒 Offline usage
- 👍 Clean and polished interface
- 👍 Works on older devices
- 👍 Friendly for less tech-savvy users

**Cons**

- 🐛 Compatibility issues
- 🐛 Downloading/installing models can be slow
- 🐛 Responses can be inaccurate or incomplete
- 🐛 App crashes when using certain features

**Commonly reported bugs**

- Incompatibility with iPhone SE2 and iPad Pro Gen3 despite supporting Metal 3
- Deepseek models not working on some devices

**Most requested features**

- Add support for saving/copying full chat conversations
- Expand functionality through Shortcuts integration
- Provide more advanced language models
- Allow users to remove/delete downloaded models
- Add support for attaching files and images
- Implement voice mode and customizable AI models

## Recent user reviews (10 of 81)

All indexed reviews: https://appshunter.io/ios/app/fullmoon-local-intelligence/id6727014156/reviews.md

### 5/5 — Can you update

*2026-07-26, version 1.2.0*

The app is great! Please update with the newest model. Thank you very much!

### 4/5 — Great way to start, but feels unfinished.

*2026-07-16, version 1.2.0*

This is a great, free starting point for someone who wants to play with AI chat, but doesn’t want every query being sent and stored in the cloud. The models offered have apparently been optimized for Apple silicon, and they do feel more responsive compared to other apps. The suggested Llama 3.2 works well, as does its bigger brother (if your phone has RAM for it).

My single biggest gripe is the apparent lack of ability to give the models standard instructions, like a “system prompt.” That omission is enough to knock this to four stars for me. It’s not a major issue for the default Llama model, or the bigger Llama model. But the Qwen models can be VERY verbose. I don’t want to have to keep telling the model “be brief.”

There’s also some fit-and-finish issues that aren’t show stoppers, but could use attention.

First, the initial model download stalled around 60% of the way in. There’s no obvious way to abort and retry. I killed the app and tried again. Fortunately that had no ill side effects.

Second, once a model is installed, I didn’t find a good way to delete it. I wound up deleting the app (purging my chat history) and reinstalling to remove the extra model.

Lastly, the number of models are limited. I realize that’s probably because of the Apple silicon optimizations. In the fullness of time, it would be nice to have some more options, even if they were paid upgrades.

Thanks to the developer for the effort. Again, it’s a great start; I’m picky. They clearly know what they’re doing, and I’m sure they’ll get there eventually.

### 1/5 — 🚨 False advertising: does not work offline

*2026-04-19, version 1.2.0*

This app does not work offline. I have switched to Apollo for running offline LLMs. That one actually does work.
To reproduce: 1. Download a model and let complete.
2. Exit app.
3. Turn on airplane mode, turn off cell data and WiFi.
4. Open app and type to chat.
5. Chat returns a timeout error, long after the time interval it would have taken to start a response had the app been connected.

### 5/5 — Works well, but not on flights.

*2025-12-29, version 1.2.0*

This app is great. While it’s does work offline, the app requires a connection to hugging face, so it’s not always possible to use it during a flight.

### 2/5 — For less powerful phones

*2025-12-20, version 1.2.0*

My M2 iPad can handle bigger models, but Fullmoon’s in-app list is constrained to models they have packaged for mobile.

### 4/5 — This is the best idea ever but…

*2025-12-13, version 1.2.0*

It just needs new/more open source models as they get released! Please add more!

### 5/5 — Great it can use offline

*2025-11-18, version 1.2.0*

Old but gold

### 4/5 — Is what it is.

*2025-11-13, version 1.2.0*

This will do what you need it to do, no flashy stuff.

Don’t expect a genius, but it ain’t dumb either.

Thanks folks!

### 2/5 — Wird wohl nicht weiterentwickelt

*2025-10-10, version 1.2.0*

Nette Idee, wird aber wohl nicht weiterentwickelt

### 1/5 — Check your app, jerks

*2025-10-05, version 1.2.0*

Does not work on iPad Air 4th Gen, even though this listing says it does. That pisses me off.

## Frequently asked questions about fullmoon

### What does this app do?

This application allows you to use private large language models (LLMs) directly on your device. It operates fully offline, ensuring your conversations and data remain private, especially when you lack internet access. The models are optimized to run efficiently on Apple silicon.

### What are the key features of this app?

Key features include private and offline LLM chat, on-device model execution optimized for Apple silicon, and availability across iOS, iPadOS, macOS, and visionOS. You can also personalize the app's theme and fonts, and use Shortcuts to integrate with other actions.

### Is this app free to use?

Yes, the application is completely free to use. It is also open source, meaning its code is publicly available. There are no in-app purchases or advertisements.

### What devices is this app compatible with?

This app is designed to work on all Apple platforms. This includes iOS devices like iPhones and iPads, as well as macOS computers and the visionOS platform.

### How can I use this app with other applications?

The app offers integration with Shortcuts, allowing you to use its local model capabilities with other actions and applications on your Apple device. This enables more complex workflows and automations involving AI outputs.

## Version history (last 3 releases)

### 1.2.0 — 2025-01-28

added support for reasoning model DeepSeek-R1-Distill-Qwen-1.5B-4bit and 8bit

### 1.0 — 2025-01-13

No release notes.

### 1.1.4 — 2025-01-08

bug fixes and improvements

## Apps similar to fullmoon

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ByePhotos - Free Up Storage](https://appshunter.io/ios/app/byephotos-free-up-storage/id6737446757) | 4.9 (95) | Free | Utilities |
| [Liquid Apollo](https://appshunter.io/ios/app/liquid-apollo/id6448019325) | 4.5 (599) | Free | Utilities |
| [Chatbox - Powerful AI Client](https://appshunter.io/ios/app/chatbox-powerful-ai-client/id6471368056) | 4.6 (575) | Free | Utilities |
| [On-Device AI: Private Suite](https://appshunter.io/ios/app/on-device-ai-private-suite/id6497060890) | 4.4 (162) | Free | Utilities |
| [Private LLM - Local AI Chat](https://appshunter.io/ios/app/private-llm-local-ai-chat/id6448106860) | 4.1 (695) | $4.99 | Utilities |
| [LLM Local Client](https://appshunter.io/ios/app/llm-local-client/id6738433730) | 4.6 (5) | Free | Utilities |

## Related topics

[local ai agent](https://appshunter.io/ios/topics/local-ai-agent) · [kubota intelligence solutions](https://appshunter.io/ios/topics/kubota-intelligence-solutions) · [synthetic intelligence](https://appshunter.io/ios/topics/synthetic-intelligence)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*