# On‑Device AI vs fullmoon

The clearest difference is in-app purchases: fullmoon at none against On‑Device AI's 4. fullmoon also leads on review sentiment (78% vs 64%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. On‑Device AI sells 4 in-app purchases, starting at $3.99 per month. fullmoon asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for On‑Device AI against 4.4 for fullmoon. Both are backed by a comparable volume of ratings — 162 and 100 respectively. Written reviews are what separate them: 64% of On‑Device AI's written reviews are positive against 78% of fullmoon's.

On‑Device AI ships an update every 2 weeks, fullmoon every 10 days. The most recent releases landed on September 22, 2026 and August 11, 2026 respectively.

## The numbers

| Metric | On‑Device AI | fullmoon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (162 ratings)](https://appshunter.io/ios/app/ondevice-aiprivate-workspace/id6497060890/reviews) | [4.4 (100 ratings)](https://appshunter.io/ios/app/fullmoon-local-intelligence/id6727014156/reviews) |
| Number of ratings | **162** | 100 |
| Positive reviews | 63.6% of reviews | **77.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1.8 GB | 30 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad, Mac, Vision Pro | iPhone, iPad, Mac, Vision Pro |
| Age rating | 17+ | 17+ |
| Developer | [Zijie Deng](https://appshunter.io/developer/1070117038) | [Mainframe Computer, Inc.](https://appshunter.io/developer/1766722186) |

## What reviewers say

### On‑Device AI

[App page](https://appshunter.io/ios/app/ondevice-aiprivate-workspace/id6497060890)

Transform your device into a private AI assistant for meetings and complex tasks. Features include speaker diarization, live transcription, and specialized subagents for research, analysis, and writing. Control your AI via messaging apps, with options for 100% offline processing or cloud connectivity.

**Highlights:** Speaker Diarization for meeting transcripts, Real-time live transcription, Natural AI speech generation, Deploy specialized AI subagents, AI-powered web browser automation, Control AI via messaging apps, 100% offline processing option

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Member Subscription | $3.99 | per month |
| Pro Member Subscription | $34.99 | per year |
| Lifetime Pro Member | $49.99 | one-time |
| Lifetime Pro Member | $99.99 | one-time |

**What reviewers like**

- 🚀 Game-changing AI assistant
- 🔍 Powerful search functionality
- 👍 Customizable and versatile
- 🌐 Seamless multi-device experience
- 💡 Innovative character-based interactions

**What reviewers complain about**

- 🐛 Crashes on larger models
- 🔋 Heating issues on some devices
- 🔍 Slow and unreliable web search
- 💻 Buggy on macOS

**Reported bugs**

- Crashes on startup
- Model selection issues
- Inability to copy generated text

**Requested features**

- Automated multi-character conversations
- Character set saving and syncing
- Streamlined search integration
- UI optimization for icons
- Remote endpoint support for multi-agents


### fullmoon

[App page](https://appshunter.io/ios/app/fullmoon-local-intelligence/id6727014156)

This app provides a private and offline way to interact with local large language models. It runs models directly on your device, optimized for Apple silicon, and is available across multiple Apple platforms. Personalize your experience and integrate with other apps via Shortcuts.

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

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**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


## Frequently asked questions

### Is On‑Device AI free?

On‑Device AI is free to download, with in-app purchases available.

### Is fullmoon free?

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

### Which has better reviews, On‑Device AI or fullmoon?

On‑Device AI and fullmoon are both rated 4.4 out of 5 on the App Store, from 162 and 100 ratings respectively.

### Do On‑Device AI or fullmoon have ads?

Neither On‑Device AI nor fullmoon shows ads.

### Which is updated more often, On‑Device AI or fullmoon?

On‑Device AI ships an update every 2 weeks, and fullmoon every 10 days. Most recently, On‑Device AI was updated on September 22, 2026 and fullmoon on August 11, 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.*