# On‑Device AI vs METH

The clearest difference is review sentiment: On‑Device AI at 64% against METH's 0%. On‑Device AI also leads on ratings volume (162 vs 1). METH's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 4). On price, ads and device support there is nothing between them.

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

METH holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: On‑Device AI has 162 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 64% of On‑Device AI's written reviews are positive against 0% of METH's, so the app with the better star average is not the one people write more warmly about.

On‑Device AI ships an update fortnightly, METH every 4 days. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | On‑Device AI | METH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (162 ratings)](https://appshunter.io/ios/app/ondevice-aiprivate-workspace/id6497060890/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/meth-meth/id6670773933/reviews)** |
| Number of ratings | **162** | 1 |
| Positive reviews | **63.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1.8 GB | 48 MB |
| Requires iOS | 18.0 | **14.0.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Zijie Deng](https://appshunter.io/developer/1070117038) | [Tj Business Group S.A. de C.V.](https://appshunter.io/developer/1492943861) |

## 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


### METH

[App page](https://appshunter.io/ios/app/meth-meth/id6670773933)

Configure, control, and monitor your methanol injection kit directly from your mobile device. This utility app provides essential tools for managing your injection system's performance.

**Highlights:** Configure injection kit settings, Control injection kit operation, Monitor injection kit performance, Mobile device integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is On‑Device AI free?

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

### Is METH free?

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

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

METH is rated higher. On‑Device AI averages 4.4 out of 5 from 162 ratings, while METH averages 5.0 from 1 ratings.

### Do On‑Device AI or METH have ads?

Neither On‑Device AI nor METH shows ads.

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

On‑Device AI ships an update fortnightly, and METH every 4 days. Most recently, On‑Device AI was updated on October 24, 2026 and METH on October 21, 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.*