# NPET vs ETOS LLM Studio

The clearest difference is price: NPET at Free against ETOS LLM Studio's $2.99. NPET also leads on iOS requirement (12.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

NPET is free to download; ETOS LLM Studio costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | NPET | ETOS LLM Studio |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/etos-llm-studio/id6757229901/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Paid |
| Size | 44 MB | 152 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Dongguan Nanxuan E-Business Co.,Ltd.](https://appshunter.io/developer/1835191253) | [琳 李](https://appshunter.io/developer/1864552804) |

## What reviewers say

### NPET

[App page](https://appshunter.io/ios/app/npet/id6751448594)

**Features:** macOS Compatibility

**In-app purchases:** none


### ETOS LLM Studio

[App page](https://appshunter.io/ios/app/etos-llm-studio/id6757229901)

This AI client offers advanced features for managing local knowledge bases and virtual personas. It provides deep integration with Apple Watch, supports multiple AI models, and allows for extensive customization of AI interactions. The app aims to be a powerful, all-around assistant for users seeking more than a basic chat interface.

**Highlights:** Native iOS and watchOS integration, Multi-model engine support (OpenAI, Anthropic, Google), Local RAG memory with SQLite vector database, Customizable Worldbook Engine for role-playing, Proactive intelligence cards via Daily Pulse, Siri Shortcuts and URL Scheme integration, Dual-engine Text-to-Speech

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NPET free?

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

### Is ETOS LLM Studio free?

ETOS LLM Studio costs $2.99, with no in-app purchases.

### Do NPET or ETOS LLM Studio have ads?

Neither NPET nor ETOS LLM Studio shows ads.

### Which is updated more often, NPET or ETOS LLM Studio?

NPET ships an update every 3 weeks, and ETOS LLM Studio every 3 weeks. Most recently, NPET was updated on October 25, 2026 and ETOS LLM Studio on October 24, 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.*