LastChat is a feature-rich AI assistant application for Android. It is a fork of 
RikkaHub, modified using Claude 4.5 Opus, GPT Codex and Gemini 3 Pro
? Key Features
Advanced AI Capabilities
Multi-Provider Support: Provider presets make it easier to get up and running. There's support for custom providers too!
RAG Memory: Features a RAG-based memory system. Assistants can "remember" details from past conversations using embeddings.
Multi-Modal Inputs: Interact using Text, Images, Video, and Audio.
Tools & Integrations
Python: Built-in Python Engine (Chaquopy)
JavaScript: Built-in JavaScript Engine (QuickJS)
Web Search: Integrated web search capabilities to fetch real-time information.
MCP: Support for MCP servers.
Assistant Management
Multiple Personas: Create, manage, and switch between unlimited custom assistants.
Tagging System: Organize assistants with custom tags.
Import/Export: Easily share or backup your assistant configurations.
Modern & Fluid UI
Material You: The app was designed with Material You 3 Expressive in mind.
Rich Rendering: Markdown support with LaTeX for math, code highlighting, and tables.
Additional Modules
Image Generation: Dedicated interface for generating images using supported models.
Text-to-Speech (TTS): Supports system TTS or other providers.
Privacy & Data
Local-First: Chat history and vector memory are stored locally on your device.
WebDAV Backup: Securely sync and backup your data to any WebDAV-compatible server.
