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ChatBoost

Free

Native Android app with support for Azure voice, custom prompts, and more. ($)

FreeFree tier
Inputs: text, image, file, audio, videoOutputs: text, image
Type
Open Source
Company
Muggle Studio
Visit Website GitHub (40 stars)

About ChatBoost

ChatBoost is a mobile AI client for Android that brings together multiple AI models, AI agents, web search, tool calling, and an AI Keyboard into one app. Users can connect services like OpenAI, Claude, Gemini, OpenRouter, DeepSeek, Qwen, Mistral, Ollama, Azure OpenAI, Amazon Bedrock, NVIDIA, and custom OpenAI-compatible services. It supports text, voice, images, files, and documents. No ChatBoost account is required; API keys and chat history are stored locally on the device. Features include customizable prompts, model-specific settings (temperature, top-p, max tokens), conversation management, and data import/export. The app also allows setting ChatBoost as the system digital assistant on Android and using its AI Keyboard in other apps for writing, translation, and rewriting text.

Key Features

Multi-model chat supporting OpenAI, Claude, Gemini, OpenRouter, DeepSeek, Qwen, Mistral, Ollama, Azure OpenAI, Amazon Bedrock, NVIDIA, and custom endpoints
AI agents with custom instructions, model selection, avatar, and tool calling support
Web search integration for supported models to find and summarize current information
Tool calling and MCP support for external tools and actions (e.g., create calendar events, generate images)
AI Keyboard for writing, rewriting, translating, and polishing text in any app
Voice support: speak prompts and listen to responses with text-to-speech
File attachments: upload images, documents, audio, and video for compatible models
Local data storage: chat history and API keys stay on device; no ChatBoost account required
Advanced settings: temperature, top-p, max tokens, reasoning effort, streaming, custom themes, fonts, and voice
Conversation management: search, pin, organize, and export chats; token usage tracking

Pros & Cons

Pros
  • No ChatBoost account required, enhancing privacy
  • Data and API keys stored locally on the device
  • Supports a wide range of AI model providers and custom endpoints
  • Free to use with optional in-app purchases
  • AI Keyboard integrates AI into any typing environment
  • Flexible agent creation with custom instructions and tool calling
  • Can function as the system digital assistant on Android
Cons
  • Only available on Android (Google Play listing)
  • Some advanced features require connecting personal API keys
  • In-app purchases present for additional functionality
  • Web search and tool calling depend on model support
  • Not all features are available offline; internet connection required for AI services

Best For

Writing and editing emails, notes, and social media postsResearching topics with web search and cross-source comparisonTranslating text between languagesLearning and studying with AI agentsGenerating images using supported modelsDrafting replies in messaging, email, and note-taking apps via AI KeyboardCreating custom assistants for specific tasks like writing, research, or translation