LMSA: Local Large Model Smart Assistant for Android Platform

LMSA (Local Model Smart Assistant) is a high-quality chat interface app built specifically for Android, with a core positioning as a privacy-first mobile AI tool. It supports local model servers like LM Studio and Ollama, and can also connect to OpenRouter to use cloud models. It offers rich features such as MCP protocol, multimodality, real-time search, and character cards, solving the privacy risks or single-function issues of most mobile AI apps.

With the development of Large Language Model (LLM) technology, users hope to experience AI capabilities on mobile devices. However, most mobile AI apps either rely on cloud APIs (posing privacy risks) or have simple interfaces and single functions. LMSA emerged to provide an interactive experience comparable to desktop versions while adhering to the privacy-first principle.

LMSA supports multiple model providers:

• LM Studio: Perfectly compatible with its API interface, allowing conversations with locally running models on the phone;
• Ollama: Natively supports the API, enabling conversations with one-click connection;
• OpenRouter: Integrates a convenient access method, allowing access to top cloud models like GPT-4 and Claude;
• OpenAI-compatible endpoints: Supports any custom endpoint implementing the OpenAI API format, expanding the app's playability. Users can freely switch between local and cloud models.

1. Native MCP Support: The Model Context Protocol (MCP) allows access to external data sources and custom tool calls, expanding the model's capability boundaries;
2. Real-Time Web Search: Integrates the Brave Search API (with SearXNG as an alternative) to provide real-time data for answers;
3. Multimodal Capabilities: Supports image upload analysis and OCR document recognition based on Tesseract.js;
4. AI Image Generation: Directly generate images via the /image command;
5. Inference Control: Toggle thinking visibility and adjust inference levels (balancing quality and speed);
6. Intelligent Conversation Tools: AI-driven smart replies (Beta) and automatic chat title generation.

1. Preset Role Library: Built-in professional roles like math tutor, code assistant, and creative writing partner;
2. Custom Role Templates: Create and save exclusive system prompts to define AI behavior patterns;
3. Character Card V2 Support: Compatible with the industry-standard Character Card V2 specification, including complex settings, scene descriptions, dialogue examples, and personalized avatars;
4. AI-Assisted Generation: Automatically generate high-quality system prompts and complete character cards based on simple descriptions.

1. Biometric Unlock: Supports device-level fingerprint or PIN verification to protect chat records;
2. Offline Mode: When using a local server, pure LAN mode is supported without the need for an internet connection;
3. Data Privacy: The app itself does not collect user data, and local server communication is conducted in a user-controllable network environment.

• Download and Installation: Search for "LMSA" in the Google Play Store to find it;
• Quick Start:
  • Connect to LM Studio: Launch the desktop API server (default port 1234) and enter the IP address and port;
  • Connect to Ollama: Set the environment variable OLLAMA_HOST=0.0.0.0 and configure the endpoint (default port 11434);
  • Connect to OpenRouter: Obtain the official website API key, paste it into the configuration, and select the model;
• Connection Presets: Save multiple sets of server configurations to quickly switch scenarios (home WiFi/outdoor mobile network/office);
• Data Import and Export: Supports LM Studio configuration migration, character card import (.json and Character Card V2 formats), and chat record export for backup.

LMSA fills the gap in local LLM clients for mobile devices, providing Android users with a feature-rich and elegantly interfaced AI conversation tool that meets both privacy security and cloud access needs. Its open-source nature supports continuous community improvement. The license uses the PolyForm Noncommercial License 1.0.0: It allows personal use, modification, learning, and educational purposes, but prohibits commercial sales or commercial derivative works.