BastionChat

Local on-device AI with advanced models for iPhone, iPad, and Mac. Complete privacy, no cloud, no tracking.

Download on the App Store

Introducing BastionChat

The Ultimate Privacy-First AI Experience

BastionChat revolutionizes AI interaction by bringing powerful language models directly to your device. Experience advanced AI conversations, voice interaction, and document analysis - all while maintaining complete privacy and control over your data.

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100% Private

All processing happens on your device

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Advanced AI

Latest models with reasoning capabilities

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Universal App

Works seamlessly on iPhone, iPad, and Mac

See BastionChat in action - Live demo

Powerful Features

🏠 100% Local Processing

BastionChat runs entirely on your device using advanced local language models. Your conversations never leave your computer, ensuring complete privacy and eliminating any concerns about data collection or surveillance.

  • No internet connection required for AI chat
  • Zero data collection or tracking
  • Complete conversation privacy
  • Works offline anywhere
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Your Device
🧠 AI Processing
☁️ No Cloud

🧠 Advanced AI Capabilities

BastionChat features cutting-edge AI capabilities powered by the latest models including Gemma 3 and Qwen 3 (thinking) models, delivering exceptional performance for complex reasoning tasks.

Advanced Features

🎤 Voice Mode - Natural speech interaction with real-time recognition
💬 Conversation Mode - Context-aware dialogues with streaming responses
📚 Document RAG - PDF, web, and text indexing with intelligent search
📝 Document Summarization - Intelligent content extraction and auto-summaries
🔐 Face ID Security - Biometric authentication for complete privacy
✈️ Offline Mode - Complete functionality without internet connection
📲 Smart Downloads - Automatic model discovery and progress tracking
🎯 Hybrid Search - Advanced semantic and keyword search capabilities
⚙️ Model Parameter Customization - Temperature, prompts, and settings control
🎓 Interactive Tutorial - Guided onboarding and feature discovery
🧠 Latest Models - Gemma 3, Qwen 3 (thinking), and multimodal support
BastionChat RAG in Action

BastionChat's advanced RAG system in action

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Voice
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Chat
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RAG
Gemma 3
Qwen 3
Latest Models

📚 Advanced Model Management

BastionChat features a sophisticated model management system with support for GGUF model formats, dynamic downloading, and intelligent model discovery.

GGUF Model Catalog

Curated collection of optimized models for different use cases

Dynamic Loading

Switch between models seamlessly based on your needs

Quantization Support

Multiple quantization levels for optimal performance

Local Discovery

Automatically finds and manages locally available models

BastionChat Model Management

Easy model management and selection interface

🚀 Quick Start Experience

Get started with BastionChat in seconds. Our intuitive onboarding process guides you through setting up your first AI model and having your first conversation - no technical knowledge required.

One-Tap Setup

Download and configure your first AI model with a single tap

Guided Tutorial

Interactive walkthrough of all major features and capabilities

Smart Defaults

Pre-configured settings optimized for the best user experience

Help at Every Step

Contextual tips and assistance throughout your journey

BastionChat Quick Start

Getting started is simple and intuitive

📄 Intelligent Document Summarization

Transform lengthy documents into concise, actionable insights. BastionChat's advanced summarization engine extracts key points, highlights important information, and creates structured summaries tailored to your needs.

Multi-Format Support

Process PDFs, web pages, text files, and more with ease

Structured Output

Get organized summaries with key points, action items, and highlights

Custom Length

Choose from brief overviews to detailed analysis

Citation Tracking

Maintain references to source material for verification

BastionChat Document Summary

Intelligent document analysis and summarization

Available Models

Choose from our curated selection of optimized AI models

Model Name Family Size Quantization Context Capabilities Status
Hermes-3-Llama-3.2-3B Llama 2.02 GB Q4_K_M 4K Advanced Reasoning ⭐ Suggested
Llama-3.2-1B-Instruct Llama 0.81 GB Q4_K_M 4K Instruction Tuned ⭐ Suggested
Qwen3-1.7B-UD Qwen 1.61 GB Q6_K_XL 32K Deep ReasoningMultilingual Available
Qwen3-4B-UD Qwen 2.13 GB Q3_K_XL 32K Deep ReasoningMultilingual Available
Qwen2.5-0.5B Qwen 0.49 GB Q5_K_M 32K MultilingualCompact ⭐ Suggested
Phi-4-mini-instruct Phi 2.12 GB Q3_K_M 4K CodingMath Available
Llama-3.2-3B-Instruct Llama 2.02 GB Q4_K_M 8K Instruction TunedReasoning Downloading
Gemma-3-4B-Instruct Gemma 2.49 GB Q4_K_M 128K MultimodalVision Available
LLaVA-Phi-3-mini Phi 2.32 GB INT4 4K MultimodalVision ⭐ Suggested

Technical Specifications

Core Engine

  • Framework: Custom AI engine optimized for local processing
  • Model Format: GGUF with multiple quantization levels
  • Model Support: Gemma 3, Qwen 3 (thinking), and latest models
  • Memory: Efficient memory management and caching

Features

  • Chat Interface: Modern, intuitive conversation UI
  • Voice Mode: Natural speech interaction capabilities
  • Document RAG: Advanced indexing of PDF, web, and text files
  • Document Summarization: Intelligent content extraction and analysis
  • Model Parameter Customization: Control temperature, prompts, and AI settings
  • Session Management: Persistent conversation history

Platform Support

  • iPhone: iOS 15.0 or later
  • iPad: iPadOS 15.0 or later
  • Mac: macOS 12.0 or later
  • Architecture: Apple Silicon optimized
  • Storage: Variable (depends on selected models)

Security & Privacy

  • Data Processing: 100% local, no cloud dependencies
  • Network: Optional for model downloads only
  • Privacy: Zero data collection or tracking
  • Telemetry: No usage analytics or monitoring

Download BastionChat

Available on iPhone, iPad, and Mac

Download on the App Store