# ETOS LLM Studio > Native AI client with local RAG, multi-model support, and Apple Watch integration. (iPhone/iPad app by 琳 李.) - Source: https://appshunter.io/ios/app/etos-llm-studio/id6757229901 (this page in markdown: same URL + `.md`) - Developer: [琳 李](https://appshunter.io/developer/1864552804) - Category: Utilities - Price: $2.99 - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 152 MB - Languages: American English, Arabic, French (France), Japanese, Russian, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Hong Kong SAR China) - Released: 2026-04-10 - Data updated: 2026-08-18 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/etos-llm-studio/id6757229901/reviews.md ## What is ETOS LLM Studio? Welcome to ETOS LLM Studio—a native AI client born out of a boring high school classroom that has ultimately evolved into a hardcore geek powerhouse. Here, AI is no longer a dull chatbox, but an all-around assistant seamlessly integrated into your digital life. Whether you want to awaken top-tier intelligence on your wrist at any moment, or build your exclusive local knowledge base and virtual personas on your phone, ETOS delivers an uncompromising, ultimate experience. [Core Highlights] Native Dual-Platform, A Universe on Your Wrist Deeply optimized for iOS and watchOS, refusing the compromises of watered-down versions. We have entirely rebuilt the chat interaction on Apple Watch, supporting streaming output, voice input, and complex concurrency, while achieving seamless real-time synchronization of configs, sessions, and tools across both platforms. Multi-Model Engine & Absolute Control Native support for mainstream providers like OpenAI, Anthropic (Claude), and Google (Gemini). We give the power back to you: customize request headers, dynamically configure model parameters, or even directly modify the raw JSON request body, satisfying a geek's desire for absolute API control. Memory Accumulation & Worldbook Engine Local RAG Memory: Your data belongs to you. Built with a fully local SQLite vector database supporting text chunking and embeddings, giving your AI genuine long-term memory. Worldbook Engine: Supports highly customizable character backgrounds, conditional triggers, and system prompt injections. Fully compatible with mainstream Worldbook formats, ready to unlock deep role-playing and immersive conversations anytime. Daily Pulse Break the passive "Q&A" deadlock. Every morning, the system synthesizes your long-term memory, recent conversations, and external signals to proactively generate high-value intelligence cards. These seamlessly transform into to-dos and chat prompts, forming a perfect positive feedback loop. Boundless Extension & Automation Fully integrated with MCP (Model Context Protocol), supporting remote tool calling and capability negotiation. Deeply integrated with Siri Shortcuts and connected with the local file system via URL Schemes, extending the AI's reach to every corner of your device. Supports dual-engine (System / Cloud) TTS (Text-to-Speech) reading, giving your AI a real voice. [About the Developer & Open Source Commitment] I am a high school student with a deep passion for computer technology. The original intention behind developing this app was simply that I was tired of the expensive and crippled AI software on the market. So, I decided to take matters into my own hands and build the ultimate client for my daily-use Mac and Apple Watch. Due to the extremely high Apple Developer annual fee, the App Store version charges a symbolic fee. Consider it a crowdfunding effort to help me pay off the debt, while you buy the convenience of not having to compile and tinker with it yourself. But technology should be shared; open source is my bottom line. The complete source code of ETOS LLM Studio (over 88,000 lines) is fully open-sourced on GitHub under the GPLv3 license. If you are also a geek who loves tinkering, you are completely free to pull the code, compile, and install it yourself for free. No matter how you found your way here, welcome to the world of ETOS. Are you ready to start the next conversation with your AI? ## Key features - 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 ## Chart rankings - #189 in Top Paid · Utilities (US App Store) ## Frequently asked questions about ETOS LLM Studio ### What is ETOS LLM Studio? ETOS LLM Studio is a native AI client designed for iOS and watchOS. It offers advanced features like local RAG memory, multi-model support, and deep customization for AI interactions, aiming to be a powerful assistant. ### Does ETOS LLM Studio have ads? No, ETOS LLM Studio does not contain advertisements. The app is a paid application, and the developer mentions the fee helps cover development costs. ### What AI models does ETOS LLM Studio support? ETOS LLM Studio natively supports mainstream AI providers including OpenAI, Anthropic (Claude), and Google (Gemini). Users can also customize request headers and parameters. ### Can I build my own AI knowledge base with ETOS LLM Studio? Yes, ETOS LLM Studio features a Local RAG Memory system built with a local SQLite vector database. This allows you to create your own data and give your AI long-term memory. ### How does ETOS LLM Studio integrate with Apple Watch? The app is deeply optimized for watchOS, featuring a rebuilt chat interaction that supports streaming output, voice input, and complex concurrency. It also offers seamless synchronization with your iPhone. ### What is the Daily Pulse feature in ETOS LLM Studio? The Daily Pulse feature proactively generates high-value intelligence cards each morning by synthesizing your long-term memory, recent conversations, and external signals. These can transform into to-dos and chat prompts. ### Is ETOS LLM Studio suitable for role-playing? Yes, the Worldbook Engine in ETOS LLM Studio supports highly customizable character backgrounds, conditional triggers, and system prompt injections. It is compatible with mainstream Worldbook formats for immersive conversations. ### How often is ETOS LLM Studio updated? The latest version is 1.8.0, and the app was last updated on July 24, 2026. This indicates a relatively frequent update cycle for new features and improvements. ## Version history (last 5 releases) ### 1.8.0 — 2026-07-24 Fixed some known issues. For details, please see: https://github.com/Eric-Terminal/ETOS-LLM-Studio/commits/main/ ### 1.7.0 — 2026-07-03 Fixed some known issues. For details, please see: https://github.com/Eric-Terminal/ETOS-LLM-Studio/commits/main/ ### 1.6.0 — 2026-05-30 Fixed some known issues. For details, please see: https://github.com/Eric-Terminal/ETOS-LLM-Studio/commits/main/ ### 1.5.0 — 2026-05-09 Resolved abnormal performance issues. For more details, please see: https://github.com/Eric-Terminal/ETOS-LLM-Studio/commits/main/ ### 1.4.0 — 2026-05-06 Optimized some existing content. For details, please see: https://github.com/Eric-Terminal/ETOS-LLM-Studio/commits/main/ ## Related topics [etos llm studio](https://appshunter.io/ios/topics/etos-llm-studio) · [etos](https://appshunter.io/ios/topics/etos) --- *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 2026-08-18.*